37287286961 has 2 divisors, whose sum is σ = 37287286962. Its totient is φ = 37287286960.

The previous prime is 37287286903. The next prime is 37287286999. The reversal of 37287286961 is 16968278273.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34620184225 + 2667102736 = 186065^2 + 51644^2 .

It is a cyclic number.

It is not a de Polignac number, because 37287286961 - 2²² = 37283092657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 37287286961.

It is not a weakly prime, because it can be changed into another prime (37287286661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18643643480 + 18643643481.

It is an arithmetic number, because the mean of its divisors is an integer number (18643643481).

Almost surely, 2^37287286961 is an apocalyptic number.

It is an amenable number.

37287286961 is a deficient number, since it is larger than the sum of its proper divisors (1).

37287286961 is an equidigital number, since it uses as much as digits as its factorization.

37287286961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 59.

The spelling of 37287286961 in words is "thirty-seven billion, two hundred eighty-seven million, two hundred eighty-six thousand, nine hundred sixty-one".