39745015236 has 36 divisors (see below), whose sum is σ = 100472627164. Its totient is φ = 13247539200.

The previous prime is 39745015229. The next prime is 39745015313. The reversal of 39745015236 is 63251054793.

39745015236 is a `hidden beast` number, since 3 + 9 + 74 + 50 + 1 + 523 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23687056836 + 16057958400 = 153906^2 + 126720^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×39745015236² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39745015191 and 39745015200.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1101156 + ... + 1136676.

Almost surely, 2^39745015236 is an apocalyptic number.

39745015236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39745015236 is an abundant number, since it is smaller than the sum of its proper divisors (60727611928).

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

39745015236 is a wasteful number, since it uses less digits than its factorization.

39745015236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66612 (or 66607 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

It can be divided in two parts, 397450 and 15236, that added together give a triangular number (412686 = T₉₀₈).

The spelling of 39745015236 in words is "thirty-nine billion, seven hundred forty-five million, fifteen thousand, two hundred thirty-six".