37700045645 has 16 divisors (see below), whose sum is σ = 45532813872. Its totient is φ = 29965178880.

The previous prime is 37700045639. The next prime is 37700045653. The reversal of 37700045645 is 54654000773.

It can be written as a sum of positive squares in 8 ways, for example, as 66373609 + 37633672036 = 8147^2 + 193994^2 .

It is not a de Polignac number, because 37700045645 - 2⁴ = 37700045629 is a prime.

It is a super-3 number, since 3×37700045645³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970109 + ... + 1008221.

It is an arithmetic number, because the mean of its divisors is an integer number (2845800867).

Almost surely, 2^37700045645 is an apocalyptic number.

It is an amenable number.

37700045645 is a deficient number, since it is larger than the sum of its proper divisors (7832768227).

37700045645 is a wasteful number, since it uses less digits than its factorization.

37700045645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39392.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 37700045645 in words is "thirty-seven billion, seven hundred million, forty-five thousand, six hundred forty-five".