401915837671 has 4 divisors (see below), whose sum is σ = 407003380000. Its totient is φ = 396828295344.

The previous prime is 401915837657. The next prime is 401915837681. The reversal of 401915837671 is 176738519104.

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 401915837671 - 2¹⁵ = 401915804903 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 (401915837681) 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, 2543771046 + ... + 2543771203.

It is an arithmetic number, because the mean of its divisors is an integer number (101750845000).

Almost surely, 2^401915837671 is an apocalyptic number.

401915837671 is a deficient number, since it is larger than the sum of its proper divisors (5087542329).

401915837671 is an equidigital number, since it uses as much as digits as its factorization.

401915837671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087542328.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 401915837671 in words is "four hundred one billion, nine hundred fifteen million, eight hundred thirty-seven thousand, six hundred seventy-one".