77354238928 has 40 divisors (see below), whose sum is σ = 152561931840. Its totient is φ = 37989177600.

The previous prime is 77354238919. The next prime is 77354238943. The reversal of 77354238928 is 82983245377.

It is a super-2 number, since 2×77354238928² (a number of 23 digits) contains 22 as substring.

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, 35151 + ... + 394897.

It is an arithmetic number, because the mean of its divisors is an integer number (3814048296).

Almost surely, 2^77354238928 is an apocalyptic number.

It is an amenable number.

77354238928 is a deficient number, since it is larger than the sum of its proper divisors (75207692912).

77354238928 is a wasteful number, since it uses less digits than its factorization.

77354238928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359995 (or 359989 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 58.

The spelling of 77354238928 in words is "seventy-seven billion, three hundred fifty-four million, two hundred thirty-eight thousand, nine hundred twenty-eight".