49858533491 has 32 divisors (see below), whose sum is σ = 55185399360. Its totient is φ = 44761766400.

The previous prime is 49858533463. The next prime is 49858533493. The reversal of 49858533491 is 19433585894.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-49858533491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49858533491.

It is not an unprimeable number, because it can be changed into a prime (49858533493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67467200 + ... + 67467938.

It is an arithmetic number, because the mean of its divisors is an integer number (1724543730).

Almost surely, 2^49858533491 is an apocalyptic number.

49858533491 is a deficient number, since it is larger than the sum of its proper divisors (5326865869).

49858533491 is a wasteful number, since it uses less digits than its factorization.

49858533491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its digits is 18662400, while the sum is 59.

The spelling of 49858533491 in words is "forty-nine billion, eight hundred fifty-eight million, five hundred thirty-three thousand, four hundred ninety-one".