21874852074 has 32 divisors (see below), whose sum is σ = 44586210240. Its totient is φ = 7152268032.

The previous prime is 21874852067. The next prime is 21874852081. The reversal of 21874852074 is 47025847812.

It is an interprime number because it is at equal distance from previous prime (21874852067) and next prime (21874852081).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086257 + ... + 2096715.

It is an arithmetic number, because the mean of its divisors is an integer number (1393319070).

Almost surely, 2^21874852074 is an apocalyptic number.

21874852074 is an abundant number, since it is smaller than the sum of its proper divisors (22711358166).

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

21874852074 is a wasteful number, since it uses less digits than its factorization.

21874852074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094.

The product of its (nonzero) digits is 1003520, while the sum is 48.

The spelling of 21874852074 in words is "twenty-one billion, eight hundred seventy-four million, eight hundred fifty-two thousand, seventy-four".