49749948739 has 2 divisors, whose sum is σ = 49749948740. Its totient is φ = 49749948738.

The previous prime is 49749948697. The next prime is 49749948757. The reversal of 49749948739 is 93784994794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49749948739 - 2¹⁹ = 49749424451 is a prime.

It is not a weakly prime, because it can be changed into another prime (49749948769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24874974369 + 24874974370.

It is an arithmetic number, because the mean of its divisors is an integer number (24874974370).

Almost surely, 2^49749948739 is an apocalyptic number.

49749948739 is a deficient number, since it is larger than the sum of its proper divisors (1).

49749948739 is an equidigital number, since it uses as much as digits as its factorization.

49749948739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493807104, while the sum is 73.

The spelling of 49749948739 in words is "forty-nine billion, seven hundred forty-nine million, nine hundred forty-eight thousand, seven hundred thirty-nine".