2180716279542 has 48 divisors (see below), whose sum is σ = 4771446519840. Its totient is φ = 719744196096.

The previous prime is 2180716279541. The next prime is 2180716279543. The reversal of 2180716279542 is 2459726170812.

2180716279542 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 7 + 1 + 627 + 9 + 5 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2180716279541) and next prime (2180716279543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180716279541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13336134 + ... + 13498662.

It is an arithmetic number, because the mean of its divisors is an integer number (99405135830).

Almost surely, 2^{2180716279542} is an apocalyptic number.

2180716279542 is an abundant number, since it is smaller than the sum of its proper divisors (2590730240298).

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

2180716279542 is a wasteful number, since it uses less digits than its factorization.

2180716279542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169877 (or 169874 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 2180716279542 in words is "two trillion, one hundred eighty billion, seven hundred sixteen million, two hundred seventy-nine thousand, five hundred forty-two".