77439753105396 has 24 divisors (see below), whose sum is σ = 197119371541344. Its totient is φ = 23466591850080.

The previous prime is 77439753105371. The next prime is 77439753105437. The reversal of 77439753105396 is 69350135793477.

It is a super-2 number, since 2×77439753105396² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77439753105396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293332397995 + ... + 293332398258.

It is an arithmetic number, because the mean of its divisors is an integer number (8213307147556).

Almost surely, 2^{77439753105396} is an apocalyptic number.

It is an amenable number.

77439753105396 is an abundant number, since it is smaller than the sum of its proper divisors (119679618435948).

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

77439753105396 is a wasteful number, since it uses less digits than its factorization.

77439753105396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586664796271 (or 586664796269 counting only the distinct ones).

The product of its (nonzero) digits is 450084600, while the sum is 69.

The spelling of 77439753105396 in words is "seventy-seven trillion, four hundred thirty-nine billion, seven hundred fifty-three million, one hundred five thousand, three hundred ninety-six".