39749289492 has 48 divisors (see below), whose sum is σ = 106505280000. Its totient is φ = 11411278560.

The previous prime is 39749289479. The next prime is 39749289523. The reversal of 39749289492 is 29498294793.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7921992 + ... + 7927007.

It is an arithmetic number, because the mean of its divisors is an integer number (2218860000).

Almost surely, 2^39749289492 is an apocalyptic number.

It is an amenable number.

39749289492 is an abundant number, since it is smaller than the sum of its proper divisors (66755990508).

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

39749289492 is a wasteful number, since it uses less digits than its factorization.

39749289492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15849036 (or 15849034 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 66.

The spelling of 39749289492 in words is "thirty-nine billion, seven hundred forty-nine million, two hundred eighty-nine thousand, four hundred ninety-two".