1015478147399 has 2 divisors, whose sum is σ = 1015478147400. Its totient is φ = 1015478147398.

The previous prime is 1015478147371. The next prime is 1015478147401. The reversal of 1015478147399 is 9937418745101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1015478147399 is a prime.

Together with 1015478147401, 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 (1015478147309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507739073699 + 507739073700.

It is an arithmetic number, because the mean of its divisors is an integer number (507739073700).

Almost surely, 2^{1015478147399} is an apocalyptic number.

1015478147399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015478147399 is an equidigital number, since it uses as much as digits as its factorization.

1015478147399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The spelling of 1015478147399 in words is "one trillion, fifteen billion, four hundred seventy-eight million, one hundred forty-seven thousand, three hundred ninety-nine".