102758400427 has 2 divisors, whose sum is σ = 102758400428. Its totient is φ = 102758400426.

The previous prime is 102758400391. The next prime is 102758400457. The reversal of 102758400427 is 724004857201.

It is a strong prime.

It is an emirp because it is prime and its reverse (724004857201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102758400427 - 2¹⁵ = 102758367659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102758400427.

It is not a weakly prime, because it can be changed into another prime (102758400457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51379200213 + 51379200214.

It is an arithmetic number, because the mean of its divisors is an integer number (51379200214).

Almost surely, 2^102758400427 is an apocalyptic number.

102758400427 is a deficient number, since it is larger than the sum of its proper divisors (1).

102758400427 is an equidigital number, since it uses as much as digits as its factorization.

102758400427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 102758400427 in words is "one hundred two billion, seven hundred fifty-eight million, four hundred thousand, four hundred twenty-seven".