77071414078450 has 48 divisors (see below), whose sum is σ = 165584017774944. Its totient is φ = 26377382355200.

The previous prime is 77071414078441. The next prime is 77071414078457. The reversal of 77071414078450 is 5487041417077.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 77071414078391 and 77071414078400.

It is not an unprimeable number, because it can be changed into a prime (77071414078457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4121456644 + ... + 4121475343.

It is an arithmetic number, because the mean of its divisors is an integer number (3449667036978).

Almost surely, 2^{77071414078450} is an apocalyptic number.

77071414078450 is an abundant number, since it is smaller than the sum of its proper divisors (88512603696494).

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

77071414078450 is a wasteful number, since it uses less digits than its factorization.

77071414078450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242932027 (or 8242932022 counting only the distinct ones).

The product of its (nonzero) digits is 6146560, while the sum is 55.

The spelling of 77071414078450 in words is "seventy-seven trillion, seventy-one billion, four hundred fourteen million, seventy-eight thousand, four hundred fifty".