45071455638 has 64 divisors (see below), whose sum is σ = 103849869312. Its totient is φ = 12906754080.

The previous prime is 45071455591. The next prime is 45071455657. The reversal of 45071455638 is 83655417054.

It is a super-2 number, since 2×45071455638² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 52870 + ... + 304857.

It is an arithmetic number, because the mean of its divisors is an integer number (1622654208).

Almost surely, 2^45071455638 is an apocalyptic number.

45071455638 is an abundant number, since it is smaller than the sum of its proper divisors (58778413674).

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

45071455638 is a wasteful number, since it uses less digits than its factorization.

45071455638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357849.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 45071455638 in words is "forty-five billion, seventy-one million, four hundred fifty-five thousand, six hundred thirty-eight".