401391551914 has 16 divisors (see below), whose sum is σ = 618910718688. Its totient is φ = 195097641552.

The previous prime is 401391551861. The next prime is 401391551921. The reversal of 401391551914 is 419155193104.

It is a super-2 number, since 2×401391551914² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331952 + ... + 2498155.

It is an arithmetic number, because the mean of its divisors is an integer number (38681919918).

Almost surely, 2^401391551914 is an apocalyptic number.

401391551914 is a deficient number, since it is larger than the sum of its proper divisors (217519166774).

401391551914 is a wasteful number, since it uses less digits than its factorization.

401391551914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831269.

The product of its (nonzero) digits is 97200, while the sum is 43.

The spelling of 401391551914 in words is "four hundred one billion, three hundred ninety-one million, five hundred fifty-one thousand, nine hundred fourteen".