78930169426 has 16 divisors (see below), whose sum is σ = 119744305560. Its totient is φ = 39016556800.

The previous prime is 78930169399. The next prime is 78930169433. The reversal of 78930169426 is 62496103987.

It can be written as a sum of positive squares in 4 ways, for example, as 72433648225 + 6496521201 = 269135^2 + 80601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151831 + ... + 425338.

Almost surely, 2^78930169426 is an apocalyptic number.

78930169426 is a deficient number, since it is larger than the sum of its proper divisors (40814136134).

78930169426 is a wasteful number, since it uses less digits than its factorization.

78930169426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577949.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 78930169426 in words is "seventy-eight billion, nine hundred thirty million, one hundred sixty-nine thousand, four hundred twenty-six".