78354623800 has 48 divisors (see below), whose sum is σ = 182536910640. Its totient is φ = 31279499520.

The previous prime is 78354623777. The next prime is 78354623827. The reversal of 78354623800 is 832645387.

It is a super-2 number, since 2×78354623800² (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 11 ways as a sum of consecutive naturals, for example, 288837 + ... + 490036.

It is an arithmetic number, because the mean of its divisors is an integer number (3802852305).

Almost surely, 2^78354623800 is an apocalyptic number.

It is an amenable number.

78354623800 is an abundant number, since it is smaller than the sum of its proper divisors (104182286840).

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

78354623800 is a wasteful number, since it uses less digits than its factorization.

78354623800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779392 (or 779383 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 78354623800 in words is "seventy-eight billion, three hundred fifty-four million, six hundred twenty-three thousand, eight hundred".