126145257518 has 16 divisors (see below), whose sum is σ = 221523380064. Its totient is φ = 52743661440.

The previous prime is 126145257517. The next prime is 126145257527. The reversal of 126145257518 is 815752541621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126145257517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109882055 + ... + 109883202.

It is an arithmetic number, because the mean of its divisors is an integer number (13845211254).

Almost surely, 2^126145257518 is an apocalyptic number.

126145257518 is a deficient number, since it is larger than the sum of its proper divisors (95378122546).

126145257518 is a wasteful number, since it uses less digits than its factorization.

126145257518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219765307.

The product of its digits is 672000, while the sum is 47.

The spelling of 126145257518 in words is "one hundred twenty-six billion, one hundred forty-five million, two hundred fifty-seven thousand, five hundred eighteen".