400273068479 has 4 divisors (see below), whose sum is σ = 401148939984. Its totient is φ = 399397196976.

The previous prime is 400273068469. The next prime is 400273068499. The reversal of 400273068479 is 974860372004.

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 400273068479 - 2²⁸ = 400004633023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400273068449) 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, 437935067 + ... + 437935980.

It is an arithmetic number, because the mean of its divisors is an integer number (100287234996).

Almost surely, 2^400273068479 is an apocalyptic number.

400273068479 is a deficient number, since it is larger than the sum of its proper divisors (875871505).

400273068479 is an equidigital number, since it uses as much as digits as its factorization.

400273068479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875871504.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 400273068479 in words is "four hundred billion, two hundred seventy-three million, sixty-eight thousand, four hundred seventy-nine".