2174988721542 has 64 divisors (see below), whose sum is σ = 5380995400704. Its totient is φ = 570711576960.

The previous prime is 2174988721489. The next prime is 2174988721559. The reversal of 2174988721542 is 2451278894712.

It is a super-2 number, since 2×2174988721542² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10002834 + ... + 10217957.

It is an arithmetic number, because the mean of its divisors is an integer number (84078053136).

Almost surely, 2^{2174988721542} is an apocalyptic number.

2174988721542 is an abundant number, since it is smaller than the sum of its proper divisors (3206006679162).

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

2174988721542 is a wasteful number, since it uses less digits than its factorization.

2174988721542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20221013.

The product of its digits is 18063360, while the sum is 60.

The spelling of 2174988721542 in words is "two trillion, one hundred seventy-four billion, nine hundred eighty-eight million, seven hundred twenty-one thousand, five hundred forty-two".