36961853691 has 96 divisors (see below), whose sum is σ = 62890168320. Its totient is φ = 18871776000.

The previous prime is 36961853689. The next prime is 36961853743. The reversal of 36961853691 is 19635816963.

It is a happy number.

It is not a de Polignac number, because 36961853691 - 2¹ = 36961853689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36961853681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9985141 + ... + 9988841.

It is an arithmetic number, because the mean of its divisors is an integer number (655105920).

Almost surely, 2^36961853691 is an apocalyptic number.

36961853691 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

36961853691 is a deficient number, since it is larger than the sum of its proper divisors (25928314629).

36961853691 is a wasteful number, since it uses less digits than its factorization.

36961853691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3794 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 57.

The spelling of 36961853691 in words is "thirty-six billion, nine hundred sixty-one million, eight hundred fifty-three thousand, six hundred ninety-one".