2158047381276 has 48 divisors (see below), whose sum is σ = 5838195820800. Its totient is φ = 688073077296.

The previous prime is 2158047381271. The next prime is 2158047381293. The reversal of 2158047381276 is 6721837408512.

2158047381276 is a `hidden beast` number, since 2 + 1 + 580 + 4 + 7 + 38 + 1 + 27 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158047381271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434387086 + ... + 434392053.

It is an arithmetic number, because the mean of its divisors is an integer number (121629079600).

Almost surely, 2^{2158047381276} is an apocalyptic number.

It is an amenable number.

2158047381276 is an abundant number, since it is smaller than the sum of its proper divisors (3680148439524).

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

2158047381276 is a wasteful number, since it uses less digits than its factorization.

2158047381276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868779175 (or 868779167 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 2158047381276 in words is "two trillion, one hundred fifty-eight billion, forty-seven million, three hundred eighty-one thousand, two hundred seventy-six".