890881747431 has 16 divisors (see below), whose sum is σ = 1282838674656. Its totient is φ = 546681839616.

The previous prime is 890881747423. The next prime is 890881747477. The reversal of 890881747431 is 134747188098.

It is not a de Polignac number, because 890881747431 - 2³ = 890881747423 is a prime.

It is a super-2 number, since 2×890881747431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890881747631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32341930 + ... + 32369463.

It is an arithmetic number, because the mean of its divisors is an integer number (80177417166).

Almost surely, 2^890881747431 is an apocalyptic number.

890881747431 is a deficient number, since it is larger than the sum of its proper divisors (391956927225).

890881747431 is a wasteful number, since it uses less digits than its factorization.

890881747431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64711762.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 890881747431 in words is "eight hundred ninety billion, eight hundred eighty-one million, seven hundred forty-seven thousand, four hundred thirty-one".