47642057052 has 12 divisors (see below), whose sum is σ = 111164799816. Its totient is φ = 15880685680.

The previous prime is 47642056991. The next prime is 47642057059. The reversal of 47642057052 is 25075024674.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47642056995 and 47642057013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47642057059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985085699 + ... + 1985085722.

It is an arithmetic number, because the mean of its divisors is an integer number (9263733318).

Almost surely, 2^47642057052 is an apocalyptic number.

It is an amenable number.

47642057052 is an abundant number, since it is smaller than the sum of its proper divisors (63522742764).

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

47642057052 is a wasteful number, since it uses less digits than its factorization.

47642057052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970171428 (or 3970171426 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 47642057052 in words is "forty-seven billion, six hundred forty-two million, fifty-seven thousand, fifty-two".