12542070049 has 2 divisors, whose sum is σ = 12542070050. Its totient is φ = 12542070048.

The previous prime is 12542070019. The next prime is 12542070077. The reversal of 12542070049 is 94007024521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7332839424 + 5209230625 = 85632^2 + 72175^2 .

It is a cyclic number.

It is not a de Polignac number, because 12542070049 - 2²⁹ = 12005199137 is a prime.

It is a super-2 number, since 2×12542070049² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12542069996 and 12542070023.

It is not a weakly prime, because it can be changed into another prime (12542070019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271035024 + 6271035025.

It is an arithmetic number, because the mean of its divisors is an integer number (6271035025).

Almost surely, 2^12542070049 is an apocalyptic number.

It is an amenable number.

12542070049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12542070049 is an equidigital number, since it uses as much as digits as its factorization.

12542070049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 12542070049 in words is "twelve billion, five hundred forty-two million, seventy thousand, forty-nine".