7761268057 has 8 divisors (see below), whose sum is σ = 8037195840. Its totient is φ = 7485893520.

The previous prime is 7761268049. The next prime is 7761268117. The reversal of 7761268057 is 7508621677.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7761268057 - 2³ = 7761268049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7761268057.

It is not an unprimeable number, because it can be changed into a prime (7761268027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109653 + ... + 165970.

It is an arithmetic number, because the mean of its divisors is an integer number (1004649480).

Almost surely, 2^7761268057 is an apocalyptic number.

It is an amenable number.

7761268057 is a deficient number, since it is larger than the sum of its proper divisors (275927783).

7761268057 is a wasteful number, since it uses less digits than its factorization.

7761268057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276623.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 7761268057 is about 88098.0593259579. The cubic root of 7761268057 is about 1979.9044317543.

The spelling of 7761268057 in words is "seven billion, seven hundred sixty-one million, two hundred sixty-eight thousand, fifty-seven".