36721251630 has 96 divisors (see below), whose sum is σ = 110495923200. Its totient is φ = 8287171776.

The previous prime is 36721251629. The next prime is 36721251641. The reversal of 36721251630 is 3615212763.

36721251630 is a `hidden beast` number, since 3 + 6 + 7 + 2 + 12 + 5 + 1 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319140 + ... + 418679.

It is an arithmetic number, because the mean of its divisors is an integer number (1150999200).

Almost surely, 2^36721251630 is an apocalyptic number.

36721251630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

36721251630 is an abundant number, since it is smaller than the sum of its proper divisors (73774671570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36721251630 is a wasteful number, since it uses less digits than its factorization.

36721251630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737918 (or 737915 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 36721251630 in words is "thirty-six billion, seven hundred twenty-one million, two hundred fifty-one thousand, six hundred thirty".