2574781542 has 48 divisors (see below), whose sum is σ = 5997288960. Its totient is φ = 795784176.

The previous prime is 2574781511. The next prime is 2574781543. The reversal of 2574781542 is 2451874752.

2574781542 is a `hidden beast` number, since 2 + 574 + 78 + 1 + 5 + 4 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2574781543) 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, 64018 + ... + 96165.

It is an arithmetic number, because the mean of its divisors is an integer number (124943520).

Almost surely, 2^2574781542 is an apocalyptic number.

2574781542 is an abundant number, since it is smaller than the sum of its proper divisors (3422507418).

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

2574781542 is a wasteful number, since it uses less digits than its factorization.

2574781542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160257 (or 160254 counting only the distinct ones).

The product of its digits is 627200, while the sum is 45.

The square root of 2574781542 is about 50742.3052491705. The cubic root of 2574781542 is about 1370.6086311293.

The spelling of 2574781542 in words is "two billion, five hundred seventy-four million, seven hundred eighty-one thousand, five hundred forty-two".