274256521896 has 128 divisors (see below), whose sum is σ = 825037516800. Its totient is φ = 74216321280.

The previous prime is 274256521883. The next prime is 274256521933. The reversal of 274256521896 is 698125652472.

It is a super-2 number, since 2×274256521896² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17014881 + ... + 17030991.

It is an arithmetic number, because the mean of its divisors is an integer number (6445605600).

Almost surely, 2^274256521896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274256521896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412518758400).

274256521896 is an abundant number, since it is smaller than the sum of its proper divisors (550780994904).

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

274256521896 is a wasteful number, since it uses less digits than its factorization.

274256521896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21479 (or 21475 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 274256521896 in words is "two hundred seventy-four billion, two hundred fifty-six million, five hundred twenty-one thousand, eight hundred ninety-six".