78058077808 has 20 divisors (see below), whose sum is σ = 151249870728. Its totient is φ = 39025853120.

The previous prime is 78058077793. The next prime is 78058077809. The reversal of 78058077808 is 80877085087.

It is a super-2 number, since 2×78058077808² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78058077809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9663 + ... + 395233.

Almost surely, 2^78058077808 is an apocalyptic number.

It is an amenable number.

78058077808 is a deficient number, since it is larger than the sum of its proper divisors (73191792920).

78058077808 is a wasteful number, since it uses less digits than its factorization.

78058077808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398232 (or 398226 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 58.

The spelling of 78058077808 in words is "seventy-eight billion, fifty-eight million, seventy-seven thousand, eight hundred eight".