402406624079 has 4 divisors (see below), whose sum is σ = 426077601984. Its totient is φ = 378735646176.

The previous prime is 402406624073. The next prime is 402406624129. The reversal of 402406624079 is 970426604204.

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

It is a cyclic number.

It is not a de Polignac number, because 402406624079 - 2⁴ = 402406624063 is a prime.

It is a super-2 number, since 2×402406624079² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402406624073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11835488927 + ... + 11835488960.

It is an arithmetic number, because the mean of its divisors is an integer number (106519400496).

Almost surely, 2^402406624079 is an apocalyptic number.

402406624079 is a deficient number, since it is larger than the sum of its proper divisors (23670977905).

402406624079 is a wasteful number, since it uses less digits than its factorization.

402406624079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23670977904.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 402406624079 in words is "four hundred two billion, four hundred six million, six hundred twenty-four thousand, seventy-nine".