215157047754 has 16 divisors (see below), whose sum is σ = 469433558880. Its totient is φ = 65199105360.

The previous prime is 215157047719. The next prime is 215157047789. The reversal of 215157047754 is 457740751512.

It is an interprime number because it is at equal distance from previous prime (215157047719) and next prime (215157047789).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629977569 + ... + 1629977700.

It is an arithmetic number, because the mean of its divisors is an integer number (29339597430).

Almost surely, 2^215157047754 is an apocalyptic number.

215157047754 is an abundant number, since it is smaller than the sum of its proper divisors (254276511126).

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

215157047754 is a wasteful number, since it uses less digits than its factorization.

215157047754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259955285.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The spelling of 215157047754 in words is "two hundred fifteen billion, one hundred fifty-seven million, forty-seven thousand, seven hundred fifty-four".