42079389700 has 18 divisors (see below), whose sum is σ = 91312275866. Its totient is φ = 16831755840.

The previous prime is 42079389647. The next prime is 42079389727. The reversal of 42079389700 is 798397024.

It can be written as a sum of positive squares in 3 ways, for example, as 5675512896 + 36403876804 = 75336^2 + 190798^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210396849 + ... + 210397048.

Almost surely, 2^42079389700 is an apocalyptic number.

It is an amenable number.

42079389700 is an abundant number, since it is smaller than the sum of its proper divisors (49232886166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42079389700 is a wasteful number, since it uses less digits than its factorization.

42079389700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420793911 (or 420793904 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 42079389700 in words is "forty-two billion, seventy-nine million, three hundred eighty-nine thousand, seven hundred".