126257006374 has 4 divisors (see below), whose sum is σ = 189385509564. Its totient is φ = 63128503186.

The previous prime is 126257006371. The next prime is 126257006413. The reversal of 126257006374 is 473600752621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 473600752621 = 53 ⋅8935863257.

It is a self number, because there is not a number n which added to its sum of digits gives 126257006374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126257006371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31564251592 + ... + 31564251595.

It is an arithmetic number, because the mean of its divisors is an integer number (47346377391).

Almost surely, 2^126257006374 is an apocalyptic number.

126257006374 is a deficient number, since it is larger than the sum of its proper divisors (63128503190).

126257006374 is an equidigital number, since it uses as much as digits as its factorization.

126257006374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63128503189.

The product of its (nonzero) digits is 423360, while the sum is 43.

Adding to 126257006374 its reverse (473600752621), we get a palindrome (599857758995).

The spelling of 126257006374 in words is "one hundred twenty-six billion, two hundred fifty-seven million, six thousand, three hundred seventy-four".