47145939900 has 72 divisors (see below), whose sum is σ = 136496680320. Its totient is φ = 12564162240.

The previous prime is 47145939859. The next prime is 47145939913. The reversal of 47145939900 is 993954174.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423937 + ... + 523463.

Almost surely, 2^47145939900 is an apocalyptic number.

It is an amenable number.

47145939900 is an abundant number, since it is smaller than the sum of its proper divisors (89350740420).

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

47145939900 is a wasteful number, since it uses less digits than its factorization.

47145939900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101123 (or 101116 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 47145939900 in words is "forty-seven billion, one hundred forty-five million, nine hundred thirty-nine thousand, nine hundred".