401950803819 has 8 divisors (see below), whose sum is σ = 538158200272. Its totient is φ = 266855304960.

The previous prime is 401950803811. The next prime is 401950803833. The reversal of 401950803819 is 918308059104.

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

It is not a de Polignac number, because 401950803819 - 2³ = 401950803811 is a prime.

It is a super-2 number, since 2×401950803819² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401950803811) 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, 277973554 + ... + 277974999.

It is an arithmetic number, because the mean of its divisors is an integer number (67269775034).

Almost surely, 2^401950803819 is an apocalyptic number.

401950803819 is a deficient number, since it is larger than the sum of its proper divisors (136207396453).

401950803819 is a wasteful number, since it uses less digits than its factorization.

401950803819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555948797.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 401950803819 in words is "four hundred one billion, nine hundred fifty million, eight hundred three thousand, eight hundred nineteen".