7406992681 has 16 divisors (see below), whose sum is σ = 8122464000. Its totient is φ = 6698610000.

The previous prime is 7406992609. The next prime is 7406992709. The reversal of 7406992681 is 1862996047.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7406992681 - 2⁹ = 7406992169 is a prime.

It is a super-2 number, since 2×7406992681² (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 (7406998681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4358770 + ... + 4360468.

It is an arithmetic number, because the mean of its divisors is an integer number (507654000).

Almost surely, 2^7406992681 is an apocalyptic number.

It is an amenable number.

7406992681 is a deficient number, since it is larger than the sum of its proper divisors (715471319).

7406992681 is a wasteful number, since it uses less digits than its factorization.

7406992681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 7406992681 is about 86063.8872059588. The cubic root of 7406992681 is about 1949.3087781085.

The spelling of 7406992681 in words is "seven billion, four hundred six million, nine hundred ninety-two thousand, six hundred eighty-one".