16742151449 has 2 divisors, whose sum is σ = 16742151450. Its totient is φ = 16742151448.

The previous prime is 16742151409. The next prime is 16742151479. The reversal of 16742151449 is 94415124761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14376010000 + 2366141449 = 119900^2 + 48643^2 .

It is a cyclic number.

It is not a de Polignac number, because 16742151449 - 2⁸ = 16742151193 is a prime.

It is not a weakly prime, because it can be changed into another prime (16742151409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8371075724 + 8371075725.

It is an arithmetic number, because the mean of its divisors is an integer number (8371075725).

Almost surely, 2^16742151449 is an apocalyptic number.

It is an amenable number.

16742151449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16742151449 is an equidigital number, since it uses as much as digits as its factorization.

16742151449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The spelling of 16742151449 in words is "sixteen billion, seven hundred forty-two million, one hundred fifty-one thousand, four hundred forty-nine".