2542647701 has 4 divisors (see below), whose sum is σ = 2773797504. Its totient is φ = 2311497900.

The previous prime is 2542647671. The next prime is 2542647713. The reversal of 2542647701 is 1077462452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542647701 - 2¹⁴ = 2542631317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542647781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115574885 + ... + 115574906.

It is an arithmetic number, because the mean of its divisors is an integer number (693449376).

Almost surely, 2^2542647701 is an apocalyptic number.

It is an amenable number.

2542647701 is a deficient number, since it is larger than the sum of its proper divisors (231149803).

2542647701 is a wasteful number, since it uses less digits than its factorization.

2542647701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231149802.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2542647701 is about 50424.6735338961. The cubic root of 2542647701 is about 1364.8829126669.

The spelling of 2542647701 in words is "two billion, five hundred forty-two million, six hundred forty-seven thousand, seven hundred one".