11408432892981 has 24 divisors (see below), whose sum is σ = 15759498759264. Its totient is φ = 7340729121600.

The previous prime is 11408432892979. The next prime is 11408432893009. The reversal of 11408432892981 is 18929823480411.

It is not a de Polignac number, because 11408432892981 - 2¹ = 11408432892979 is a prime.

It is a super-2 number, since 2×11408432892981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11408432892781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6248506 + ... + 7865156.

It is an arithmetic number, because the mean of its divisors is an integer number (656645781636).

Almost surely, 2^{11408432892981} is an apocalyptic number.

It is an amenable number.

11408432892981 is a deficient number, since it is larger than the sum of its proper divisors (4351065866283).

11408432892981 is a wasteful number, since it uses less digits than its factorization.

11408432892981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619509 (or 1619480 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 60.

The spelling of 11408432892981 in words is "eleven trillion, four hundred eight billion, four hundred thirty-two million, eight hundred ninety-two thousand, nine hundred eighty-one".