49751851801 has 2 divisors, whose sum is σ = 49751851802. Its totient is φ = 49751851800.

The previous prime is 49751851781. The next prime is 49751851817. The reversal of 49751851801 is 10815815794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46882642576 + 2869209225 = 216524^2 + 53565^2 .

It is a cyclic number.

It is not a de Polignac number, because 49751851801 - 2⁵ = 49751851769 is a prime.

It is not a weakly prime, because it can be changed into another prime (49751251801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24875925900 + 24875925901.

It is an arithmetic number, because the mean of its divisors is an integer number (24875925901).

Almost surely, 2^49751851801 is an apocalyptic number.

It is an amenable number.

49751851801 is a deficient number, since it is larger than the sum of its proper divisors (1).

49751851801 is an equidigital number, since it uses as much as digits as its factorization.

49751851801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 49.

The spelling of 49751851801 in words is "forty-nine billion, seven hundred fifty-one million, eight hundred fifty-one thousand, eight hundred one".