125744717542 has 4 divisors (see below), whose sum is σ = 188617076316. Its totient is φ = 62872358770.

The previous prime is 125744717537. The next prime is 125744717557. The reversal of 125744717542 is 245717447521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31436179384 + ... + 31436179387.

It is an arithmetic number, because the mean of its divisors is an integer number (47154269079).

Almost surely, 2^125744717542 is an apocalyptic number.

125744717542 is a deficient number, since it is larger than the sum of its proper divisors (62872358774).

125744717542 is an equidigital number, since it uses as much as digits as its factorization.

125744717542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62872358773.

The product of its digits is 2195200, while the sum is 49.

The spelling of 125744717542 in words is "one hundred twenty-five billion, seven hundred forty-four million, seven hundred seventeen thousand, five hundred forty-two".