10402113949 has 2 divisors, whose sum is σ = 10402113950. Its totient is φ = 10402113948.

The previous prime is 10402113947. The next prime is 10402113979. The reversal of 10402113949 is 94931120401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9393098724 + 1009015225 = 96918^2 + 31765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10402113949 - 2¹ = 10402113947 is a prime.

Together with 10402113947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10402113947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201056974 + 5201056975.

It is an arithmetic number, because the mean of its divisors is an integer number (5201056975).

Almost surely, 2^10402113949 is an apocalyptic number.

It is an amenable number.

10402113949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402113949 is an equidigital number, since it uses as much as digits as its factorization.

10402113949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 10402113949 in words is "ten billion, four hundred two million, one hundred thirteen thousand, nine hundred forty-nine".