37427728720 has 20 divisors (see below), whose sum is σ = 87019469460. Its totient is φ = 14971091456.

The previous prime is 37427728693. The next prime is 37427728727. The reversal of 37427728720 is 2782772473.

37427728720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9975215376 + 27452513344 = 99876^2 + 165688^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37427728727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233923225 + ... + 233923384.

It is an arithmetic number, because the mean of its divisors is an integer number (4350973473).

Almost surely, 2^37427728720 is an apocalyptic number.

It is an amenable number.

37427728720 is an abundant number, since it is smaller than the sum of its proper divisors (49591740740).

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

37427728720 is a wasteful number, since it uses less digits than its factorization.

37427728720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467846622 (or 467846616 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 49.

The spelling of 37427728720 in words is "thirty-seven billion, four hundred twenty-seven million, seven hundred twenty-eight thousand, seven hundred twenty".