401887188953 has 32 divisors (see below), whose sum is σ = 420343096320. Its totient is φ = 383999616000.

The previous prime is 401887188949. The next prime is 401887188961. The reversal of 401887188953 is 359881788104.

It is a cyclic number.

It is not a de Polignac number, because 401887188953 - 2² = 401887188949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401887188553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226159601 + ... + 226161377.

It is an arithmetic number, because the mean of its divisors is an integer number (13135721760).

Almost surely, 2^401887188953 is an apocalyptic number.

It is an amenable number.

401887188953 is a deficient number, since it is larger than the sum of its proper divisors (18455907367).

401887188953 is a wasteful number, since it uses less digits than its factorization.

401887188953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649.

The product of its (nonzero) digits is 15482880, while the sum is 62.

The spelling of 401887188953 in words is "four hundred one billion, eight hundred eighty-seven million, one hundred eighty-eight thousand, nine hundred fifty-three".