213654102251456 has 28 divisors (see below), whose sum is σ = 427721804825952. Its totient is φ = 105881678988288.

The previous prime is 213654102251441. The next prime is 213654102251477. The reversal of 213654102251456 is 654152201456312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213654102251456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14771432360 + ... + 14771446823.

It is an arithmetic number, because the mean of its divisors is an integer number (15275778743784).

Almost surely, 2^{213654102251456} is an apocalyptic number.

It is an amenable number.

213654102251456 is an abundant number, since it is smaller than the sum of its proper divisors (214067702574496).

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

213654102251456 is a wasteful number, since it uses less digits than its factorization.

213654102251456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29542879308 (or 29542879298 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 213654102251456 in words is "two hundred thirteen trillion, six hundred fifty-four billion, one hundred two million, two hundred fifty-one thousand, four hundred fifty-six".