49998020423 has 16 divisors (see below), whose sum is σ = 55108653600. Its totient is φ = 45068534784.

The previous prime is 49998020407. The next prime is 49998020461. The reversal of 49998020423 is 32402089994.

It is a happy number.

It is not a de Polignac number, because 49998020423 - 2⁴ = 49998020407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49998020483) 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, 3656303 + ... + 3669951.

It is an arithmetic number, because the mean of its divisors is an integer number (3444290850).

Almost surely, 2^49998020423 is an apocalyptic number.

49998020423 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

49998020423 is a deficient number, since it is larger than the sum of its proper divisors (5110633177).

49998020423 is a wasteful number, since it uses less digits than its factorization.

49998020423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20258.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 49998020423 in words is "forty-nine billion, nine hundred ninety-eight million, twenty thousand, four hundred twenty-three".