42684621870 has 96 divisors (see below), whose sum is σ = 119226600864. Its totient is φ = 9739079680.

The previous prime is 42684621857. The next prime is 42684621883. The reversal of 42684621870 is 7812648624.

It is an interprime number because it is at equal distance from previous prime (42684621857) and next prime (42684621883).

It is a super-3 number, since 3×42684621870³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284139 + ... + 407558.

It is an arithmetic number, because the mean of its divisors is an integer number (1241943759).

Almost surely, 2^42684621870 is an apocalyptic number.

42684621870 is an abundant number, since it is smaller than the sum of its proper divisors (76541978994).

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

42684621870 is a wasteful number, since it uses less digits than its factorization.

42684621870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691746 (or 691735 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 42684621870 in words is "forty-two billion, six hundred eighty-four million, six hundred twenty-one thousand, eight hundred seventy".