401392780513 has 8 divisors (see below), whose sum is σ = 402324511680. Its totient is φ = 400462093680.

The previous prime is 401392780471. The next prime is 401392780549. The reversal of 401392780513 is 315087293104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401392780513 - 2⁹ = 401392780001 is a prime.

It is a super-2 number, since 2×401392780513² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401392780513.

It is not an unprimeable number, because it can be changed into a prime (401392880513) 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 7 ways as a sum of consecutive naturals, for example, 511158 + ... + 1031536.

It is an arithmetic number, because the mean of its divisors is an integer number (50290563960).

Almost surely, 2^401392780513 is an apocalyptic number.

It is an amenable number.

401392780513 is a deficient number, since it is larger than the sum of its proper divisors (931731167).

401392780513 is a wasteful number, since it uses less digits than its factorization.

401392780513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522167.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 401392780513 in words is "four hundred one billion, three hundred ninety-two million, seven hundred eighty thousand, five hundred thirteen".