2870547820638 has 32 divisors (see below), whose sum is σ = 5795133058176. Its totient is φ = 947881281888.

The previous prime is 2870547820633. The next prime is 2870547820649. The reversal of 2870547820638 is 8360287450782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870547820633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4480081 + ... + 5080572.

It is an arithmetic number, because the mean of its divisors is an integer number (181097908068).

Almost surely, 2^{2870547820638} is an apocalyptic number.

2870547820638 is an abundant number, since it is smaller than the sum of its proper divisors (2924585237538).

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

2870547820638 is a wasteful number, since it uses less digits than its factorization.

2870547820638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9561128.

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 2870547820638 in words is "two trillion, eight hundred seventy billion, five hundred forty-seven million, eight hundred twenty thousand, six hundred thirty-eight".