401904985507 has 8 divisors (see below), whose sum is σ = 404980845696. Its totient is φ = 398840497152.

The previous prime is 401904985499. The next prime is 401904985519. The reversal of 401904985507 is 705589409104.

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 401904985507 - 2³ = 401904985499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401904985567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2771998 + ... + 2913379.

It is an arithmetic number, because the mean of its divisors is an integer number (50622605712).

Almost surely, 2^401904985507 is an apocalyptic number.

401904985507 is a deficient number, since it is larger than the sum of its proper divisors (3075860189).

401904985507 is a wasteful number, since it uses less digits than its factorization.

401904985507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685917.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 401904985507 in words is "four hundred one billion, nine hundred four million, nine hundred eighty-five thousand, five hundred seven".