2634360781 has 8 divisors (see below), whose sum is σ = 2872916480. Its totient is φ = 2400935472.

The previous prime is 2634360761. The next prime is 2634360793. The reversal of 2634360781 is 1870634362.

2634360781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2634360781 - 2⁷ = 2634360653 is a prime.

It is a super-2 number, since 2×2634360781² = 13879713448941859922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634360731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281525 + ... + 1283578.

It is an arithmetic number, because the mean of its divisors is an integer number (359114560).

Almost surely, 2^2634360781 is an apocalyptic number.

It is an amenable number.

2634360781 is a deficient number, since it is larger than the sum of its proper divisors (238555699).

2634360781 is a wasteful number, since it uses less digits than its factorization.

2634360781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565195.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 2634360781 is about 51326.0244028310. The cubic root of 2634360781 is about 1381.0998689811.

The spelling of 2634360781 in words is "two billion, six hundred thirty-four million, three hundred sixty thousand, seven hundred eighty-one".