99403677431 has 8 divisors (see below), whose sum is σ = 105257340864. Its totient is φ = 93550723840.

The previous prime is 99403677421. The next prime is 99403677491. The reversal of 99403677431 is 13477630499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99403677431 - 2¹⁴ = 99403661047 is a prime.

It is a super-2 number, since 2×99403677431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99403677421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125666 + ... + 463248.

It is an arithmetic number, because the mean of its divisors is an integer number (13157167608).

Almost surely, 2^99403677431 is an apocalyptic number.

99403677431 is a deficient number, since it is larger than the sum of its proper divisors (5853663433).

99403677431 is a wasteful number, since it uses less digits than its factorization.

99403677431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354921.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 99403677431 in words is "ninety-nine billion, four hundred three million, six hundred seventy-seven thousand, four hundred thirty-one".