401026988481 has 16 divisors (see below), whose sum is σ = 611681491968. Its totient is φ = 228935998800.

The previous prime is 401026988471. The next prime is 401026988489. The reversal of 401026988481 is 184889620104.

It is not a de Polignac number, because 401026988481 - 2¹⁸ = 401026726337 is a prime.

It is a super-2 number, since 2×401026988481² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401026988489) 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, 9239515 + ... + 9282816.

It is an arithmetic number, because the mean of its divisors is an integer number (38230093248).

Almost surely, 2^401026988481 is an apocalyptic number.

It is an amenable number.

401026988481 is a deficient number, since it is larger than the sum of its proper divisors (210654503487).

401026988481 is a wasteful number, since it uses less digits than its factorization.

401026988481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18523372.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 401026988481 in words is "four hundred one billion, twenty-six million, nine hundred eighty-eight thousand, four hundred eighty-one".