401723462791 has 8 divisors (see below), whose sum is σ = 459460615680. Its totient is φ = 344073331608.

The previous prime is 401723462747. The next prime is 401723462801. The reversal of 401723462791 is 197264327104.

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

It is a cyclic number.

It is not a de Polignac number, because 401723462791 - 2⁷ = 401723462663 is a prime.

It is a super-2 number, since 2×401723462791² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401723462711) 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, 21745531 + ... + 21763996.

It is an arithmetic number, because the mean of its divisors is an integer number (57432576960).

Almost surely, 2^401723462791 is an apocalyptic number.

401723462791 is a deficient number, since it is larger than the sum of its proper divisors (57737152889).

401723462791 is a wasteful number, since it uses less digits than its factorization.

401723462791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43510853.

The product of its (nonzero) digits is 508032, while the sum is 46.

Adding to 401723462791 its reverse (197264327104), we get a palindrome (598987789895).

The spelling of 401723462791 in words is "four hundred one billion, seven hundred twenty-three million, four hundred sixty-two thousand, seven hundred ninety-one".