89780428431 has 20 divisors (see below), whose sum is σ = 134811369792. Its totient is φ = 59543486208.

The previous prime is 89780428429. The next prime is 89780428477. The reversal of 89780428431 is 13482408798.

It is a happy number.

89780428431 is a `hidden beast` number, since 8 + 97 + 80 + 42 + 8 + 431 = 666.

It is not a de Polignac number, because 89780428431 - 2¹ = 89780428429 is a prime.

It is a super-2 number, since 2×89780428431² (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 (89780428411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2855871 + ... + 2887136.

Almost surely, 2^89780428431 is an apocalyptic number.

89780428431 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

89780428431 is a deficient number, since it is larger than the sum of its proper divisors (45030941361).

89780428431 is a wasteful number, since it uses less digits than its factorization.

89780428431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743212 (or 5743203 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 89780428431 in words is "eighty-nine billion, seven hundred eighty million, four hundred twenty-eight thousand, four hundred thirty-one".