42784376715 has 64 divisors (see below), whose sum is σ = 80514086400. Its totient is φ = 21519050112.

The previous prime is 42784376707. The next prime is 42784376737. The reversal of 42784376715 is 51767348724.

42784376715 is a `hidden beast` number, since 427 + 84 + 3 + 76 + 71 + 5 = 666.

It is not a de Polignac number, because 42784376715 - 2³ = 42784376707 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41272 + ... + 295418.

It is an arithmetic number, because the mean of its divisors is an integer number (1258032600).

Almost surely, 2^42784376715 is an apocalyptic number.

42784376715 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42784376715 is a deficient number, since it is larger than the sum of its proper divisors (37729709685).

42784376715 is a wasteful number, since it uses less digits than its factorization.

42784376715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254233 (or 254227 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 42784376715 in words is "forty-two billion, seven hundred eighty-four million, three hundred seventy-six thousand, seven hundred fifteen".