15400846247 has 2 divisors, whose sum is σ = 15400846248. Its totient is φ = 15400846246.

The previous prime is 15400846189. The next prime is 15400846249. The reversal of 15400846247 is 74264800451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15400846247 - 2¹⁸ = 15400584103 is a prime.

Together with 15400846249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15400846249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700423123 + 7700423124.

It is an arithmetic number, because the mean of its divisors is an integer number (7700423124).

Almost surely, 2^15400846247 is an apocalyptic number.

15400846247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15400846247 is an equidigital number, since it uses as much as digits as its factorization.

15400846247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 15400846247 in words is "fifteen billion, four hundred million, eight hundred forty-six thousand, two hundred forty-seven".