76702427401 has 4 divisors (see below), whose sum is σ = 77190978052. Its totient is φ = 76213876752.

The previous prime is 76702427371. The next prime is 76702427467. The reversal of 76702427401 is 10472420767.

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 49184594176 + 27517833225 = 221776^2 + 165885^2 .

It is a cyclic number.

It is not a de Polignac number, because 76702427401 - 2⁵ = 76702427369 is a prime.

It is a super-2 number, since 2×76702427401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76702427471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244275090 + ... + 244275403.

It is an arithmetic number, because the mean of its divisors is an integer number (19297744513).

Almost surely, 2^76702427401 is an apocalyptic number.

It is an amenable number.

76702427401 is a deficient number, since it is larger than the sum of its proper divisors (488550651).

76702427401 is a wasteful number, since it uses less digits than its factorization.

76702427401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488550650.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 76702427401 in words is "seventy-six billion, seven hundred two million, four hundred twenty-seven thousand, four hundred one".