400682845501 has 4 divisors (see below), whose sum is σ = 400719960000. Its totient is φ = 400645731004.

The previous prime is 400682845481. The next prime is 400682845559. The reversal of 400682845501 is 105548286004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400682845501 - 2¹⁹ = 400682321213 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 (400682815501) 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, 18541051 + ... + 18562648.

It is an arithmetic number, because the mean of its divisors is an integer number (100179990000).

Almost surely, 2^400682845501 is an apocalyptic number.

It is an amenable number.

400682845501 is a deficient number, since it is larger than the sum of its proper divisors (37114499).

400682845501 is a wasteful number, since it uses less digits than its factorization.

400682845501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37114498.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 400682845501 in words is "four hundred billion, six hundred eighty-two million, eight hundred forty-five thousand, five hundred one".