7261655961 has 32 divisors (see below), whose sum is σ = 12332943360. Its totient is φ = 3699876096.

The previous prime is 7261655959. The next prime is 7261655963. The reversal of 7261655961 is 1695561627.

It is an interprime number because it is at equal distance from previous prime (7261655959) and next prime (7261655963).

It is not a de Polignac number, because 7261655961 - 2¹ = 7261655959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7261655961.

It is not an unprimeable number, because it can be changed into a prime (7261655963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528501 + ... + 542066.

It is an arithmetic number, because the mean of its divisors is an integer number (385404480).

Almost surely, 2^7261655961 is an apocalyptic number.

It is an amenable number.

7261655961 is a deficient number, since it is larger than the sum of its proper divisors (5071287399).

7261655961 is a wasteful number, since it uses less digits than its factorization.

7261655961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070613.

The product of its digits is 680400, while the sum is 48.

The square root of 7261655961 is about 85215.3505009514. The cubic root of 7261655961 is about 1936.4749784585.

The spelling of 7261655961 in words is "seven billion, two hundred sixty-one million, six hundred fifty-five thousand, nine hundred sixty-one".