39885064542 has 12 divisors (see below), whose sum is σ = 86417639880. Its totient is φ = 13295021508.

The previous prime is 39885064519. The next prime is 39885064547. The reversal of 39885064542 is 24546058893.

39885064542 is a `hidden beast` number, since 3 + 9 + 88 + 506 + 4 + 54 + 2 = 666.

39885064542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39885064547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1107918442 + ... + 1107918477.

It is an arithmetic number, because the mean of its divisors is an integer number (7201469990).

Almost surely, 2^39885064542 is an apocalyptic number.

39885064542 is an abundant number, since it is smaller than the sum of its proper divisors (46532575338).

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

39885064542 is a wasteful number, since it uses less digits than its factorization.

39885064542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215836927 (or 2215836924 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 39885064542 in words is "thirty-nine billion, eight hundred eighty-five million, sixty-four thousand, five hundred forty-two".