37785871020 has 48 divisors (see below), whose sum is σ = 105865740288. Its totient is φ = 10070013120.

The previous prime is 37785870979. The next prime is 37785871021. The reversal of 37785871020 is 2017858773.

It is not an unprimeable number, because it can be changed into a prime (37785871021) 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, 95916 + ... + 291155.

It is an arithmetic number, because the mean of its divisors is an integer number (2205536256).

Almost surely, 2^37785871020 is an apocalyptic number.

37785871020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37785871020 is an abundant number, since it is smaller than the sum of its proper divisors (68079869268).

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

37785871020 is a wasteful number, since it uses less digits than its factorization.

37785871020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388710 (or 388708 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 48.

It can be divided in two parts, 377858 and 71020, that added together give a triangular number (448878 = T₉₄₇).

The spelling of 37785871020 in words is "thirty-seven billion, seven hundred eighty-five million, eight hundred seventy-one thousand, twenty".