79844279554 has 16 divisors (see below), whose sum is σ = 128987740728. Its totient is φ = 36848771712.

The previous prime is 79844279539. The next prime is 79844279561. The reversal of 79844279554 is 45597244897.

It can be written as a sum of positive squares in 4 ways, for example, as 59891304529 + 19952975025 = 244727^2 + 141255^2 .

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, 335214 + ... + 521590.

Almost surely, 2^79844279554 is an apocalyptic number.

79844279554 is a deficient number, since it is larger than the sum of its proper divisors (49143461174).

79844279554 is a wasteful number, since it uses less digits than its factorization.

79844279554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202869.

The product of its digits is 101606400, while the sum is 64.

The spelling of 79844279554 in words is "seventy-nine billion, eight hundred forty-four million, two hundred seventy-nine thousand, five hundred fifty-four".