49251480391 has 2 divisors, whose sum is σ = 49251480392. Its totient is φ = 49251480390.

The previous prime is 49251480371. The next prime is 49251480413. The reversal of 49251480391 is 19308415294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49251480391 - 2⁷ = 49251480263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49251480371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24625740195 + 24625740196.

It is an arithmetic number, because the mean of its divisors is an integer number (24625740196).

Almost surely, 2^49251480391 is an apocalyptic number.

49251480391 is a deficient number, since it is larger than the sum of its proper divisors (1).

49251480391 is an equidigital number, since it uses as much as digits as its factorization.

49251480391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 49251480391 in words is "forty-nine billion, two hundred fifty-one million, four hundred eighty thousand, three hundred ninety-one".