7651512040 has 64 divisors (see below), whose sum is σ = 18162144000. Its totient is φ = 2893098240.

The previous prime is 7651512023. The next prime is 7651512067. The reversal of 7651512040 is 402151567.

It is a junction number, because it is equal to n+sod(n) for n = 7651511993 and 7651512011.

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, 339441 + ... + 361279.

It is an arithmetic number, because the mean of its divisors is an integer number (283783500).

Almost surely, 2^7651512040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7651512040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9081072000).

7651512040 is an abundant number, since it is smaller than the sum of its proper divisors (10510631960).

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

7651512040 is a wasteful number, since it uses less digits than its factorization.

7651512040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330 (or 22326 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 7651512040 is about 87472.9217529631. The cubic root of 7651512040 is about 1970.5271455563.

The spelling of 7651512040 in words is "seven billion, six hundred fifty-one million, five hundred twelve thousand, forty".