8072542634 has 16 divisors (see below), whose sum is σ = 13043396520. Its totient is φ = 3724893120.

The previous prime is 8072542609. The next prime is 8072542657. The reversal of 8072542634 is 4362452708.

It can be written as a sum of positive squares in 4 ways, for example, as 8068530625 + 4012009 = 89825^2 + 2003^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8072542591 and 8072542600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79832 + ... + 150060.

Almost surely, 2^8072542634 is an apocalyptic number.

8072542634 is a deficient number, since it is larger than the sum of its proper divisors (4970853886).

8072542634 is a wasteful number, since it uses less digits than its factorization.

8072542634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74665.

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 8072542634 is about 89847.3295874730. The cubic root of 8072542634 is about 2006.0270386581.

The spelling of 8072542634 in words is "eight billion, seventy-two million, five hundred forty-two thousand, six hundred thirty-four".