401771068845 has 32 divisors (see below), whose sum is σ = 680696327808. Its totient is φ = 201658841088.

The previous prime is 401771068837. The next prime is 401771068873. The reversal of 401771068845 is 548860177104.

It is not a de Polignac number, because 401771068845 - 2³ = 401771068837 is a prime.

It is a super-2 number, since 2×401771068845² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4099657 + ... + 4196513.

It is an arithmetic number, because the mean of its divisors is an integer number (21271760244).

Almost surely, 2^401771068845 is an apocalyptic number.

It is an amenable number.

401771068845 is a deficient number, since it is larger than the sum of its proper divisors (278925258963).

401771068845 is a wasteful number, since it uses less digits than its factorization.

401771068845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113149.

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 401771068845 in words is "four hundred one billion, seven hundred seventy-one million, sixty-eight thousand, eight hundred forty-five".