2178742380754 has 16 divisors (see below), whose sum is σ = 3410260118208. Its totient is φ = 1041990526192.

The previous prime is 2178742380707. The next prime is 2178742380767. The reversal of 2178742380754 is 4570832478712.

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, 2810229 + ... + 3500695.

It is an arithmetic number, because the mean of its divisors is an integer number (213141257388).

Almost surely, 2^{2178742380754} is an apocalyptic number.

2178742380754 is a deficient number, since it is larger than the sum of its proper divisors (1231517737454).

2178742380754 is a wasteful number, since it uses less digits than its factorization.

2178742380754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759089.

The product of its (nonzero) digits is 21073920, while the sum is 58.

The spelling of 2178742380754 in words is "two trillion, one hundred seventy-eight billion, seven hundred forty-two million, three hundred eighty thousand, seven hundred fifty-four".