7492720705 has 16 divisors (see below), whose sum is σ = 9242985024. Its totient is φ = 5826669120.

The previous prime is 7492720681. The next prime is 7492720721. The reversal of 7492720705 is 5070272947.

It is not a de Polignac number, because 7492720705 - 2⁵ = 7492720673 is a prime.

It is a super-2 number, since 2×7492720705² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183274 + ... + 220396.

It is an arithmetic number, because the mean of its divisors is an integer number (577686564).

Almost surely, 2^7492720705 is an apocalyptic number.

It is an amenable number.

7492720705 is a deficient number, since it is larger than the sum of its proper divisors (1750264319).

7492720705 is a wasteful number, since it uses less digits than its factorization.

7492720705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38256.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 7492720705 is about 86560.5031466430. The cubic root of 7492720705 is about 1956.8003383390.

The spelling of 7492720705 in words is "seven billion, four hundred ninety-two million, seven hundred twenty thousand, seven hundred five".