76765874497 has 4 divisors (see below), whose sum is σ = 82670941780. Its totient is φ = 70860807216.

The previous prime is 76765874489. The next prime is 76765874519. The reversal of 76765874497 is 79447856767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79447856767 = 79 ⋅1005669073.

It can be written as a sum of positive squares in 2 ways, for example, as 24989602561 + 51776271936 = 158081^2 + 227544^2 .

It is a cyclic number.

It is not a de Polignac number, because 76765874497 - 2³ = 76765874489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76765874417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952533622 + ... + 2952533647.

It is an arithmetic number, because the mean of its divisors is an integer number (20667735445).

Almost surely, 2^76765874497 is an apocalyptic number.

It is an amenable number.

76765874497 is a deficient number, since it is larger than the sum of its proper divisors (5905067283).

76765874497 is a wasteful number, since it uses less digits than its factorization.

76765874497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905067282.

The product of its digits is 497871360, while the sum is 70.

The spelling of 76765874497 in words is "seventy-six billion, seven hundred sixty-five million, eight hundred seventy-four thousand, four hundred ninety-seven".