2115057362251 has 4 divisors (see below), whose sum is σ = 2115098255512. Its totient is φ = 2115016468992.

The previous prime is 2115057362189. The next prime is 2115057362263. The reversal of 2115057362251 is 1522637505112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115057362251 - 2¹⁹ = 2115056837963 is a prime.

It is a super-2 number, since 2×2115057362251² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115057369251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20368950 + ... + 20472523.

It is an arithmetic number, because the mean of its divisors is an integer number (528774563878).

Almost surely, 2^{2115057362251} is an apocalyptic number.

2115057362251 is a deficient number, since it is larger than the sum of its proper divisors (40893261).

2115057362251 is an equidigital number, since it uses as much as digits as its factorization.

2115057362251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40893260.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 2115057362251 in words is "two trillion, one hundred fifteen billion, fifty-seven million, three hundred sixty-two thousand, two hundred fifty-one".