37921825133 has 4 divisors (see below), whose sum is σ = 37937957568. Its totient is φ = 37905692700.

The previous prime is 37921825129. The next prime is 37921825163. The reversal of 37921825133 is 33152812973.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37921825133 - 2² = 37921825129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37921825163) 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, 8062691 + ... + 8067392.

It is an arithmetic number, because the mean of its divisors is an integer number (9484489392).

Almost surely, 2^37921825133 is an apocalyptic number.

It is an amenable number.

37921825133 is a deficient number, since it is larger than the sum of its proper divisors (16132435).

37921825133 is a wasteful number, since it uses less digits than its factorization.

37921825133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16132434.

The product of its digits is 272160, while the sum is 44.

The spelling of 37921825133 in words is "thirty-seven billion, nine hundred twenty-one million, eight hundred twenty-five thousand, one hundred thirty-three".