71326161942 has 32 divisors (see below), whose sum is σ = 166358400000. Its totient is φ = 20378902824.

The previous prime is 71326161931. The next prime is 71326161961. The reversal of 71326161942 is 24916162317.

It is a super-2 number, since 2×71326161942² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 71326161894 and 71326161903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17326942 + ... + 17331057.

It is an arithmetic number, because the mean of its divisors is an integer number (5198700000).

Almost surely, 2^71326161942 is an apocalyptic number.

71326161942 is an abundant number, since it is smaller than the sum of its proper divisors (95032238058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71326161942 is a wasteful number, since it uses less digits than its factorization.

71326161942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34658025 (or 34658011 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The spelling of 71326161942 in words is "seventy-one billion, three hundred twenty-six million, one hundred sixty-one thousand, nine hundred forty-two".