21295460212542 has 48 divisors (see below), whose sum is σ = 46287339894432. Its totient is φ = 7075845835200.

The previous prime is 21295460212531. The next prime is 21295460212633. The reversal of 21295460212542 is 24521206459212.

21295460212542 is a `hidden beast` number, since 2 + 1 + 2 + 95 + 4 + 6 + 0 + 2 + 12 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239362167 + ... + 239451117.

It is an arithmetic number, because the mean of its divisors is an integer number (964319581134).

Almost surely, 2^{21295460212542} is an apocalyptic number.

21295460212542 is an abundant number, since it is smaller than the sum of its proper divisors (24991879681890).

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

21295460212542 is a wasteful number, since it uses less digits than its factorization.

21295460212542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131233 (or 131230 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 21295460212542 in words is "twenty-one trillion, two hundred ninety-five billion, four hundred sixty million, two hundred twelve thousand, five hundred forty-two".