76770356657 has 8 divisors (see below), whose sum is σ = 78552580200. Its totient is φ = 75005026560.

The previous prime is 76770356623. The next prime is 76770356699. The reversal of 76770356657 is 75665307767.

It can be written as a sum of positive squares in 4 ways, for example, as 19749136 + 76750607521 = 4444^2 + 277039^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-76770356657 is a prime.

It is a super-2 number, since 2×76770356657² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76770356596 and 76770356605.

It is not an unprimeable number, because it can be changed into a prime (76770356357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4214168 + ... + 4232345.

It is an arithmetic number, because the mean of its divisors is an integer number (9819072525).

Almost surely, 2^76770356657 is an apocalyptic number.

It is an amenable number.

76770356657 is a deficient number, since it is larger than the sum of its proper divisors (1782223543).

76770356657 is a wasteful number, since it uses less digits than its factorization.

76770356657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446723.

The product of its (nonzero) digits is 38896200, while the sum is 59.

The spelling of 76770356657 in words is "seventy-six billion, seven hundred seventy million, three hundred fifty-six thousand, six hundred fifty-seven".