21873487254094 has 32 divisors (see below), whose sum is σ = 37728555929856. Its totient is φ = 9316567745280.

The previous prime is 21873487254049. The next prime is 21873487254107. The reversal of 21873487254094 is 49045278437812.

It is a super-2 number, since 2×21873487254094² (a number of 27 digits) contains 22 as substring.

It is a congruent 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, 90796869 + ... + 91037455.

It is an arithmetic number, because the mean of its divisors is an integer number (1179017372808).

Almost surely, 2^{21873487254094} is an apocalyptic number.

21873487254094 is a deficient number, since it is larger than the sum of its proper divisors (15855068675762).

21873487254094 is a wasteful number, since it uses less digits than its factorization.

21873487254094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280600.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 21873487254094 in words is "twenty-one trillion, eight hundred seventy-three billion, four hundred eighty-seven million, two hundred fifty-four thousand, ninety-four".