49749948697 has 2 divisors, whose sum is σ = 49749948698. Its totient is φ = 49749948696.

The previous prime is 49749948691. The next prime is 49749948739. The reversal of 49749948697 is 79684994794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28252231056 + 21497717641 = 168084^2 + 146621^2 .

It is a cyclic number.

It is not a de Polignac number, because 49749948697 - 2⁷ = 49749948569 is a prime.

It is not a weakly prime, because it can be changed into another prime (49749948691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24874974348 + 24874974349.

It is an arithmetic number, because the mean of its divisors is an integer number (24874974349).

Almost surely, 2^49749948697 is an apocalyptic number.

It is an amenable number.

49749948697 is a deficient number, since it is larger than the sum of its proper divisors (1).

49749948697 is an equidigital number, since it uses as much as digits as its factorization.

49749948697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987614208, while the sum is 76.

The spelling of 49749948697 in words is "forty-nine billion, seven hundred forty-nine million, nine hundred forty-eight thousand, six hundred ninety-seven".