7492720707 has 24 divisors (see below), whose sum is σ = 11061163568. Its totient is φ = 4886049600.

The previous prime is 7492720681. The next prime is 7492720721. The reversal of 7492720707 is 7070272947.

It is a happy number.

It is not a de Polignac number, because 7492720707 - 2¹¹ = 7492718659 is a prime.

It is a super-2 number, since 2×7492720707² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7492720747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61668 + ... + 137070.

Almost surely, 2^7492720707 is an apocalyptic number.

7492720707 is a deficient number, since it is larger than the sum of its proper divisors (3568442861).

7492720707 is a wasteful number, since it uses less digits than its factorization.

7492720707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75651 (or 75648 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 7492720707 is about 86560.5031581957. The cubic root of 7492720707 is about 1956.8003385131.

The spelling of 7492720707 in words is "seven billion, four hundred ninety-two million, seven hundred twenty thousand, seven hundred seven".