78508244402 has 16 divisors (see below), whose sum is σ = 134606754240. Its totient is φ = 33641092368.

The previous prime is 78508244401. The next prime is 78508244411. The reversal of 78508244402 is 20444280587.

It is not an unprimeable number, because it can be changed into a prime (78508244401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348752 + ... + 527867.

It is an arithmetic number, because the mean of its divisors is an integer number (8412922140).

Almost surely, 2^78508244402 is an apocalyptic number.

78508244402 is a deficient number, since it is larger than the sum of its proper divisors (56098509838).

78508244402 is a wasteful number, since it uses less digits than its factorization.

78508244402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883025.

The product of its (nonzero) digits is 573440, while the sum is 44.

The spelling of 78508244402 in words is "seventy-eight billion, five hundred eight million, two hundred forty-four thousand, four hundred two".