617601612037 has 2 divisors, whose sum is σ = 617601612038. Its totient is φ = 617601612036.

The previous prime is 617601612031. The next prime is 617601612049. The reversal of 617601612037 is 730216106716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597414601476 + 20187010561 = 772926^2 + 142081^2 .

It is a cyclic number.

It is not a de Polignac number, because 617601612037 - 2³¹ = 615454128389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617601612031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308800806018 + 308800806019.

It is an arithmetic number, because the mean of its divisors is an integer number (308800806019).

Almost surely, 2^617601612037 is an apocalyptic number.

It is an amenable number.

617601612037 is a deficient number, since it is larger than the sum of its proper divisors (1).

617601612037 is an equidigital number, since it uses as much as digits as its factorization.

617601612037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 617601612037 in words is "six hundred seventeen billion, six hundred one million, six hundred twelve thousand, thirty-seven".