39487878794 has 16 divisors (see below), whose sum is σ = 72900699648. Its totient is φ = 15621578352.

The previous prime is 39487878769. The next prime is 39487878799. The reversal of 39487878794 is 49787878493.

It is not an unprimeable number, because it can be changed into a prime (39487878799) 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, 108483002 + ... + 108483365.

It is an arithmetic number, because the mean of its divisors is an integer number (4556293728).

Almost surely, 2^39487878794 is an apocalyptic number.

39487878794 is a deficient number, since it is larger than the sum of its proper divisors (33412820854).

39487878794 is a wasteful number, since it uses less digits than its factorization.

39487878794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216966389.

The product of its digits is 682795008, while the sum is 74.

The spelling of 39487878794 in words is "thirty-nine billion, four hundred eighty-seven million, eight hundred seventy-eight thousand, seven hundred ninety-four".