78802235612 has 6 divisors (see below), whose sum is σ = 137903912328. Its totient is φ = 39401117804.

The previous prime is 78802235579. The next prime is 78802235651. The reversal of 78802235612 is 21653220887.

It is a super-2 number, since 2×78802235612² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9850279448 + ... + 9850279455.

It is an arithmetic number, because the mean of its divisors is an integer number (22983985388).

Almost surely, 2^78802235612 is an apocalyptic number.

It is an amenable number.

78802235612 is a deficient number, since it is larger than the sum of its proper divisors (59101676716).

78802235612 is a wasteful number, since it uses less digits than its factorization.

78802235612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19700558907 (or 19700558905 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 78802235612 in words is "seventy-eight billion, eight hundred two million, two hundred thirty-five thousand, six hundred twelve".