39746436512 has 24 divisors (see below), whose sum is σ = 78749219556. Its totient is φ = 19746634752.

The previous prime is 39746436491. The next prime is 39746436523. The reversal of 39746436512 is 21563464793.

It can be written as a sum of positive squares in 2 ways, for example, as 37047010576 + 2699425936 = 192476^2 + 51956^2 .

It is a super-2 number, since 2×39746436512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950633 + ... + 3960680.

Almost surely, 2^39746436512 is an apocalyptic number.

39746436512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39746436512 is a deficient number, since it is larger than the sum of its proper divisors (39002783044).

39746436512 is a wasteful number, since it uses less digits than its factorization.

39746436512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911480 (or 7911472 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The spelling of 39746436512 in words is "thirty-nine billion, seven hundred forty-six million, four hundred thirty-six thousand, five hundred twelve".