45988270638 has 32 divisors (see below), whose sum is σ = 95173056000. Its totient is φ = 14804682816.

The previous prime is 45988270619. The next prime is 45988270639. The reversal of 45988270638 is 83607288954.

45988270638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45988270638² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45988270639) 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, 978438 + ... + 1024361.

It is an arithmetic number, because the mean of its divisors is an integer number (2974158000).

Almost surely, 2^45988270638 is an apocalyptic number.

45988270638 is an abundant number, since it is smaller than the sum of its proper divisors (49184785362).

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

45988270638 is a wasteful number, since it uses less digits than its factorization.

45988270638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002936.

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 45988270638 in words is "forty-five billion, nine hundred eighty-eight million, two hundred seventy thousand, six hundred thirty-eight".