7540662672 has 30 divisors (see below), whose sum is σ = 21103382742. Its totient is φ = 2513554176.

The previous prime is 7540662667. The next prime is 7540662739. The reversal of 7540662672 is 2762660457.

It can be written as a sum of positive squares in only one way, i.e., 4731238656 + 2809424016 = 68784^2 + 53004^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26182713 + ... + 26183000.

Almost surely, 2^7540662672 is an apocalyptic number.

7540662672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7540662672 is an abundant number, since it is smaller than the sum of its proper divisors (13562720070).

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

7540662672 is a wasteful number, since it uses less digits than its factorization.

7540662672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52365727 (or 52365718 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 7540662672 is about 86836.9890772360. The cubic root of 7540662672 is about 1960.9649794991.

The spelling of 7540662672 in words is "seven billion, five hundred forty million, six hundred sixty-two thousand, six hundred seventy-two".