15480474197 has 2 divisors, whose sum is σ = 15480474198. Its totient is φ = 15480474196.

The previous prime is 15480474167. The next prime is 15480474199. The reversal of 15480474197 is 79147408451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13185010276 + 2295463921 = 114826^2 + 47911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15480474197 is a prime.

Together with 15480474199, 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 (15480474199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7740237098 + 7740237099.

It is an arithmetic number, because the mean of its divisors is an integer number (7740237099).

Almost surely, 2^15480474197 is an apocalyptic number.

It is an amenable number.

15480474197 is a deficient number, since it is larger than the sum of its proper divisors (1).

15480474197 is an equidigital number, since it uses as much as digits as its factorization.

15480474197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 15480474197 in words is "fifteen billion, four hundred eighty million, four hundred seventy-four thousand, one hundred ninety-seven".