37573611121 has 2 divisors, whose sum is σ = 37573611122. Its totient is φ = 37573611120.

The previous prime is 37573611113. The next prime is 37573611137. The reversal of 37573611121 is 12111637573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37417486096 + 156125025 = 193436^2 + 12495^2 .

It is a cyclic number.

It is not a de Polignac number, because 37573611121 - 2³ = 37573611113 is a prime.

It is not a weakly prime, because it can be changed into another prime (37573611421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18786805560 + 18786805561.

It is an arithmetic number, because the mean of its divisors is an integer number (18786805561).

Almost surely, 2^37573611121 is an apocalyptic number.

It is an amenable number.

37573611121 is a deficient number, since it is larger than the sum of its proper divisors (1).

37573611121 is an equidigital number, since it uses as much as digits as its factorization.

37573611121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The spelling of 37573611121 in words is "thirty-seven billion, five hundred seventy-three million, six hundred eleven thousand, one hundred twenty-one".