42977436100 has 27 divisors (see below), whose sum is σ = 93265535181. Its totient is φ = 17190145200.

The previous prime is 42977436079. The next prime is 42977436107. The reversal of 42977436100 is 163477924.

The square root of 42977436100 is 207310.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15471876996 + 27505559104 = 124386^2 + 165848^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42977436107) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2062735 + ... + 2083465.

Almost surely, 2^42977436100 is an apocalyptic number.

42977436100 is the 207310-th square number.

It is an amenable number.

42977436100 is an abundant number, since it is smaller than the sum of its proper divisors (50288099081).

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

42977436100 is an frugal number, since it uses more digits than its factorization.

42977436100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41476 (or 20738 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 42977436100 in words is "forty-two billion, nine hundred seventy-seven million, four hundred thirty-six thousand, one hundred".