126420574499 has 2 divisors, whose sum is σ = 126420574500. Its totient is φ = 126420574498.

The previous prime is 126420574453. The next prime is 126420574529. The reversal of 126420574499 is 994475024621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126420574499 - 2¹² = 126420570403 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126420574499.

It is not a weakly prime, because it can be changed into another prime (126423574499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63210287249 + 63210287250.

It is an arithmetic number, because the mean of its divisors is an integer number (63210287250).

Almost surely, 2^126420574499 is an apocalyptic number.

126420574499 is a deficient number, since it is larger than the sum of its proper divisors (1).

126420574499 is an equidigital number, since it uses as much as digits as its factorization.

126420574499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 126420574499 in words is "one hundred twenty-six billion, four hundred twenty million, five hundred seventy-four thousand, four hundred ninety-nine".