76211947345 has 4 divisors (see below), whose sum is σ = 91454336820. Its totient is φ = 60969557872.

The previous prime is 76211947327. The next prime is 76211947379. The reversal of 76211947345 is 54374911267.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25810350336 + 50401597009 = 160656^2 + 224503^2 .

It is a cyclic number.

It is not a de Polignac number, because 76211947345 - 2³⁵ = 41852208977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7621194730 + ... + 7621194739.

It is an arithmetic number, because the mean of its divisors is an integer number (22863584205).

Almost surely, 2^76211947345 is an apocalyptic number.

It is an amenable number.

76211947345 is a deficient number, since it is larger than the sum of its proper divisors (15242389475).

76211947345 is a wasteful number, since it uses less digits than its factorization.

76211947345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15242389474.

The product of its digits is 1270080, while the sum is 49.

The spelling of 76211947345 in words is "seventy-six billion, two hundred eleven million, nine hundred forty-seven thousand, three hundred forty-five".