401615039378 has 16 divisors (see below), whose sum is σ = 689976391104. Its totient is φ = 171747364560.

The previous prime is 401615039363. The next prime is 401615039387. The reversal of 401615039378 is 873930516104.

It is a happy number.

It is a super-2 number, since 2×401615039378² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31107200 + ... + 31120107.

It is an arithmetic number, because the mean of its divisors is an integer number (43123524444).

Almost surely, 2^401615039378 is an apocalyptic number.

401615039378 is a deficient number, since it is larger than the sum of its proper divisors (288361351726).

401615039378 is a wasteful number, since it uses less digits than its factorization.

401615039378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62227777.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 401615039378 in words is "four hundred one billion, six hundred fifteen million, thirty-nine thousand, three hundred seventy-eight".