37381711920 has 120 divisors (see below), whose sum is σ = 134803072944. Its totient is φ = 8544388608.

The previous prime is 37381711909. The next prime is 37381711949. The reversal of 37381711920 is 2911718373.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1577599 + ... + 1601118.

Almost surely, 2^37381711920 is an apocalyptic number.

37381711920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37381711920 is an abundant number, since it is smaller than the sum of its proper divisors (97421361024).

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

37381711920 is a wasteful number, since it uses less digits than its factorization.

37381711920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178747 (or 3178734 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 37381711920 in words is "thirty-seven billion, three hundred eighty-one million, seven hundred eleven thousand, nine hundred twenty".