213151779060942 has 128 divisors (see below), whose sum is σ = 453415749696000. Its totient is φ = 66613535847936.

The previous prime is 213151779060907. The next prime is 213151779060973. The reversal of 213151779060942 is 249060977151312.

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

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5954441388 + ... + 5954477184.

It is an arithmetic number, because the mean of its divisors is an integer number (3542310544500).

Almost surely, 2^{213151779060942} is an apocalyptic number.

213151779060942 is an abundant number, since it is smaller than the sum of its proper divisors (240263970635058).

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

213151779060942 is a wasteful number, since it uses less digits than its factorization.

213151779060942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37250.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 213151779060942 in words is "two hundred thirteen trillion, one hundred fifty-one billion, seven hundred seventy-nine million, sixty thousand, nine hundred forty-two".