401814047777 has 16 divisors (see below), whose sum is σ = 415176727680. Its totient is φ = 388640378112.

The previous prime is 401814047743. The next prime is 401814047779. The reversal of 401814047777 is 777740418104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401814047777 - 2⁸ = 401814047521 is a prime.

It is a super-2 number, since 2×401814047777² (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 (401814047779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5351348 + ... + 5425914.

It is an arithmetic number, because the mean of its divisors is an integer number (25948545480).

Almost surely, 2^401814047777 is an apocalyptic number.

It is an amenable number.

401814047777 is a deficient number, since it is larger than the sum of its proper divisors (13362679903).

401814047777 is a wasteful number, since it uses less digits than its factorization.

401814047777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75832.

The product of its (nonzero) digits is 1229312, while the sum is 50.

The spelling of 401814047777 in words is "four hundred one billion, eight hundred fourteen million, forty-seven thousand, seven hundred seventy-seven".