102044157678413 has 2 divisors, whose sum is σ = 102044157678414. Its totient is φ = 102044157678412.

The previous prime is 102044157678409. The next prime is 102044157678427. The reversal of 102044157678413 is 314876751440201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90828771950569 + 11215385727844 = 9530413^2 + 3348938^2 .

It is a cyclic number.

It is not a de Polignac number, because 102044157678413 - 2² = 102044157678409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102044157678913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51022078839206 + 51022078839207.

It is an arithmetic number, because the mean of its divisors is an integer number (51022078839207).

Almost surely, 2^{102044157678413} is an apocalyptic number.

It is an amenable number.

102044157678413 is a deficient number, since it is larger than the sum of its proper divisors (1).

102044157678413 is an equidigital number, since it uses as much as digits as its factorization.

102044157678413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 102044157678413 in words is "one hundred two trillion, forty-four billion, one hundred fifty-seven million, six hundred seventy-eight thousand, four hundred thirteen".