78994741756 has 48 divisors (see below), whose sum is σ = 164700813312. Its totient is φ = 32438376000.

The previous prime is 78994741717. The next prime is 78994741781. The reversal of 78994741756 is 65714749987.

It is a junction number, because it is equal to n+sod(n) for n = 78994741691 and 78994741700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362866 + ... + 538201.

It is an arithmetic number, because the mean of its divisors is an integer number (3431266944).

Almost surely, 2^78994741756 is an apocalyptic number.

It is an amenable number.

78994741756 is an abundant number, since it is smaller than the sum of its proper divisors (85706071556).

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

78994741756 is a wasteful number, since it uses less digits than its factorization.

78994741756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901210 (or 901208 counting only the distinct ones).

The product of its digits is 106686720, while the sum is 67.

The spelling of 78994741756 in words is "seventy-eight billion, nine hundred ninety-four million, seven hundred forty-one thousand, seven hundred fifty-six".