21967012190258 has 32 divisors (see below), whose sum is σ = 33105928497408. Its totient is φ = 10931833785600.

The previous prime is 21967012190177. The next prime is 21967012190281. The reversal of 21967012190258 is 85209121076912.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 932097191 + ... + 932120757.

It is an arithmetic number, because the mean of its divisors is an integer number (1034560265544).

Almost surely, 2^{21967012190258} is an apocalyptic number.

21967012190258 is a deficient number, since it is larger than the sum of its proper divisors (11138916307150).

21967012190258 is a wasteful number, since it uses less digits than its factorization.

21967012190258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26258.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 21967012190258 in words is "twenty-one trillion, nine hundred sixty-seven billion, twelve million, one hundred ninety thousand, two hundred fifty-eight".