2542644026 has 32 divisors (see below), whose sum is σ = 4161462480. Its totient is φ = 1158119424.

The previous prime is 2542644007. The next prime is 2542644031. The reversal of 2542644026 is 6204462452.

It can be written as a sum of positive squares in 8 ways, for example, as 665588401 + 1877055625 = 25799^2 + 43325^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204666 + ... + 2205818.

Almost surely, 2^2542644026 is an apocalyptic number.

2542644026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2542644026 is a deficient number, since it is larger than the sum of its proper divisors (1618818454).

2542644026 is a wasteful number, since it uses less digits than its factorization.

2542644026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210.

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 2542644026 is about 50424.6370933892. The cubic root of 2542644026 is about 1364.8822550916.

The spelling of 2542644026 in words is "two billion, five hundred forty-two million, six hundred forty-four thousand, twenty-six".