42386685615 has 48 divisors (see below), whose sum is σ = 76481653248. Its totient is φ = 22520107296.

The previous prime is 42386685581. The next prime is 42386685623. The reversal of 42386685615 is 51658668324.

42386685615 is a `hidden beast` number, since 42 + 38 + 6 + 6 + 8 + 561 + 5 = 666.

It is not a de Polignac number, because 42386685615 - 2¹⁴ = 42386669231 is a prime.

It is a super-2 number, since 2×42386685615² (a number of 22 digits) contains 22 as substring.

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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253222 + ... + 385868.

It is an arithmetic number, because the mean of its divisors is an integer number (1593367776).

Almost surely, 2^42386685615 is an apocalyptic number.

42386685615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42386685615 is a deficient number, since it is larger than the sum of its proper divisors (34094967633).

42386685615 is a wasteful number, since it uses less digits than its factorization.

42386685615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132930 (or 132918 counting only the distinct ones).

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

The spelling of 42386685615 in words is "forty-two billion, three hundred eighty-six million, six hundred eighty-five thousand, six hundred fifteen".