39492644947 has 8 divisors (see below), whose sum is σ = 46690812000. Its totient is φ = 32683568064.

The previous prime is 39492644941. The next prime is 39492644969. The reversal of 39492644947 is 74944629493.

39492644947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39492644947 - 2¹⁹ = 39492120659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39492644941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97272322 + ... + 97272727.

It is an arithmetic number, because the mean of its divisors is an integer number (5836351500).

Almost surely, 2^39492644947 is an apocalyptic number.

39492644947 is a deficient number, since it is larger than the sum of its proper divisors (7198167053).

39492644947 is a wasteful number, since it uses less digits than its factorization.

39492644947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194545085.

The product of its digits is 47029248, while the sum is 61.

The spelling of 39492644947 in words is "thirty-nine billion, four hundred ninety-two million, six hundred forty-four thousand, nine hundred forty-seven".