8537661951 has 96 divisors (see below), whose sum is σ = 15197495040. Its totient is φ = 4213472256.

The previous prime is 8537661941. The next prime is 8537661967. The reversal of 8537661951 is 1591667358.

It is not a de Polignac number, because 8537661951 - 2⁷ = 8537661823 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8537661894 and 8537661903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8537661941) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3012231 + ... + 3015063.

It is an arithmetic number, because the mean of its divisors is an integer number (158307240).

Almost surely, 2^8537661951 is an apocalyptic number.

8537661951 is a deficient number, since it is larger than the sum of its proper divisors (6659833089).

8537661951 is a wasteful number, since it uses less digits than its factorization.

8537661951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965 (or 2958 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 8537661951 is about 92399.4694302949. The cubic root of 8537661951 is about 2043.8372884489.

The spelling of 8537661951 in words is "eight billion, five hundred thirty-seven million, six hundred sixty-one thousand, nine hundred fifty-one".