42878277331318 has 24 divisors (see below), whose sum is σ = 76134156767424. Its totient is φ = 17990885592240.

The previous prime is 42878277331289. The next prime is 42878277331339. The reversal of 42878277331318 is 81313377287824.

It is a happy number.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42878277331318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6814726246 + ... + 6814732537.

It is an arithmetic number, because the mean of its divisors is an integer number (3172256531976).

Almost surely, 2^{42878277331318} is an apocalyptic number.

42878277331318 is a deficient number, since it is larger than the sum of its proper divisors (33255879436106).

42878277331318 is a wasteful number, since it uses less digits than its factorization.

42878277331318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629458820 (or 13629458809 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 64.

The spelling of 42878277331318 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred seventy-seven million, three hundred thirty-one thousand, three hundred eighteen".