37764381216 has 24 divisors (see below), whose sum is σ = 99131500944. Its totient is φ = 12588127040.

The previous prime is 37764381199. The next prime is 37764381253. The reversal of 37764381216 is 61218346773.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×37764381216² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196689390 + ... + 196689581.

It is an arithmetic number, because the mean of its divisors is an integer number (4130479206).

Almost surely, 2^37764381216 is an apocalyptic number.

It is an amenable number.

37764381216 is an abundant number, since it is smaller than the sum of its proper divisors (61367119728).

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

37764381216 is a wasteful number, since it uses less digits than its factorization.

37764381216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393378984 (or 393378976 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The spelling of 37764381216 in words is "thirty-seven billion, seven hundred sixty-four million, three hundred eighty-one thousand, two hundred sixteen".