89890078023 has 16 divisors (see below), whose sum is σ = 133189900800. Its totient is φ = 59917982040.

The previous prime is 89890077989. The next prime is 89890078043. The reversal of 89890078023 is 32087009898.

It is not a de Polignac number, because 89890078023 - 2¹⁰ = 89890076999 is a prime.

It is a super-2 number, since 2×89890078023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89890078043) 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, 51313 + ... + 427098.

It is an arithmetic number, because the mean of its divisors is an integer number (8324368800).

Almost surely, 2^89890078023 is an apocalyptic number.

89890078023 is a deficient number, since it is larger than the sum of its proper divisors (43299822777).

89890078023 is a wasteful number, since it uses less digits than its factorization.

89890078023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485379 (or 485373 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 89890078023 in words is "eighty-nine billion, eight hundred ninety million, seventy-eight thousand, twenty-three".