37828863621 has 16 divisors (see below), whose sum is σ = 56069368320. Its totient is φ = 25207269120.

The previous prime is 37828863587. The next prime is 37828863647. The reversal of 37828863621 is 12636882873.

37828863621 is a `hidden beast` number, since 3 + 7 + 8 + 2 + 8 + 8 + 6 + 3 + 621 = 666.

It is not a de Polignac number, because 37828863621 - 2⁷ = 37828863493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37828863661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 274485 + ... + 388586.

It is an arithmetic number, because the mean of its divisors is an integer number (3504335520).

Almost surely, 2^37828863621 is an apocalyptic number.

It is an amenable number.

37828863621 is a deficient number, since it is larger than the sum of its proper divisors (18240504699).

37828863621 is a wasteful number, since it uses less digits than its factorization.

37828863621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665193 (or 665187 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 37828863621 in words is "thirty-seven billion, eight hundred twenty-eight million, eight hundred sixty-three thousand, six hundred twenty-one".