61137570807 has 12 divisors (see below), whose sum is σ = 88311995200. Its totient is φ = 40757378688.

The previous prime is 61137570787. The next prime is 61137570827. The reversal of 61137570807 is 70807573116.

61137570807 is a `hidden beast` number, since 61 + 13 + 7 + 570 + 8 + 0 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (61137570787) and next prime (61137570827).

It is not a de Polignac number, because 61137570807 - 2¹⁰ = 61137569783 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 (61137570827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583194 + ... + 679992.

Almost surely, 2^61137570807 is an apocalyptic number.

61137570807 is a deficient number, since it is larger than the sum of its proper divisors (27174424393).

61137570807 is a wasteful number, since it uses less digits than its factorization.

61137570807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166982 (or 166979 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The spelling of 61137570807 in words is "sixty-one billion, one hundred thirty-seven million, five hundred seventy thousand, eight hundred seven".