2157289538354 has 16 divisors (see below), whose sum is σ = 3348069465600. Its totient is φ = 1041278632464.

The previous prime is 2157289538347. The next prime is 2157289538381. The reversal of 2157289538354 is 4538359827512.

It is a happy number.

It is a super-2 number, since 2×2157289538354² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706692 + ... + 3411855.

It is an arithmetic number, because the mean of its divisors is an integer number (209254341600).

Almost surely, 2^{2157289538354} is an apocalyptic number.

2157289538354 is a deficient number, since it is larger than the sum of its proper divisors (1190779927246).

2157289538354 is a wasteful number, since it uses less digits than its factorization.

2157289538354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124657.

The product of its digits is 72576000, while the sum is 62.

The spelling of 2157289538354 in words is "two trillion, one hundred fifty-seven billion, two hundred eighty-nine million, five hundred thirty-eight thousand, three hundred fifty-four".