78880887430 has 32 divisors (see below), whose sum is σ = 142450143264. Its totient is φ = 31449225216.

The previous prime is 78880887409. The next prime is 78880887439. The reversal of 78880887430 is 3478808887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78880887439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7555494 + ... + 7565926.

It is an arithmetic number, because the mean of its divisors is an integer number (4451566977).

Almost surely, 2^78880887430 is an apocalyptic number.

78880887430 is a deficient number, since it is larger than the sum of its proper divisors (63569255834).

78880887430 is a wasteful number, since it uses less digits than its factorization.

78880887430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840.

The product of its (nonzero) digits is 19267584, while the sum is 61.

The spelling of 78880887430 in words is "seventy-eight billion, eight hundred eighty million, eight hundred eighty-seven thousand, four hundred thirty".