49100100001 has 2 divisors, whose sum is σ = 49100100002. Its totient is φ = 49100100000.

The previous prime is 49100099989. The next prime is 49100100017. The reversal of 49100100001 is 10000100194.

It is a happy number.

It is an a-pointer prime, because the next prime (49100100017) can be obtained adding 49100100001 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48697896976 + 402203025 = 220676^2 + 20055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49100100001 is a prime.

It is not a weakly prime, because it can be changed into another prime (49100100901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24550050000 + 24550050001.

It is an arithmetic number, because the mean of its divisors is an integer number (24550050001).

Almost surely, 2^49100100001 is an apocalyptic number.

It is an amenable number.

49100100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

49100100001 is an equidigital number, since it uses as much as digits as its factorization.

49100100001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 49100100001 its reverse (10000100194), we get a palindrome (59100200195).

The spelling of 49100100001 in words is "forty-nine billion, one hundred million, one hundred thousand, one".