72229435737 has 8 divisors (see below), whose sum is σ = 96360859104. Its totient is φ = 48125484768.

The previous prime is 72229435723. The next prime is 72229435739. The reversal of 72229435737 is 73753492227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72229435737 - 2⁴ = 72229435721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72229435737.

It is not an unprimeable number, because it can be changed into a prime (72229435739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6861963 + ... + 6872480.

It is an arithmetic number, because the mean of its divisors is an integer number (12045107388).

Almost surely, 2^72229435737 is an apocalyptic number.

It is an amenable number.

72229435737 is a deficient number, since it is larger than the sum of its proper divisors (24131423367).

72229435737 is a wasteful number, since it uses less digits than its factorization.

72229435737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13736199.

The product of its digits is 4445280, while the sum is 51.

The spelling of 72229435737 in words is "seventy-two billion, two hundred twenty-nine million, four hundred thirty-five thousand, seven hundred thirty-seven".