37445037121 has 4 divisors (see below), whose sum is σ = 37587413952. Its totient is φ = 37302660292.

The previous prime is 37445037103. The next prime is 37445037163. The reversal of 37445037121 is 12173054473.

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 37445037121 - 2¹⁷ = 37444906049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37445037181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71188021 + ... + 71188546.

It is an arithmetic number, because the mean of its divisors is an integer number (9396853488).

Almost surely, 2^37445037121 is an apocalyptic number.

It is an amenable number.

37445037121 is a deficient number, since it is larger than the sum of its proper divisors (142376831).

37445037121 is a wasteful number, since it uses less digits than its factorization.

37445037121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142376830.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 37445037121 in words is "thirty-seven billion, four hundred forty-five million, thirty-seven thousand, one hundred twenty-one".