126577137747 has 8 divisors (see below), whose sum is σ = 168792636880. Its totient is φ = 84373198560.

The previous prime is 126577137697. The next prime is 126577137767. The reversal of 126577137747 is 747731775621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126577137747 - 2¹⁸ = 126576875603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126577137767) 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, 2864404 + ... + 2908257.

It is an arithmetic number, because the mean of its divisors is an integer number (21099079610).

Almost surely, 2^126577137747 is an apocalyptic number.

126577137747 is a deficient number, since it is larger than the sum of its proper divisors (42215499133).

126577137747 is an equidigital number, since it uses as much as digits as its factorization.

126577137747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779973.

The product of its digits is 12101040, while the sum is 57.

The spelling of 126577137747 in words is "one hundred twenty-six billion, five hundred seventy-seven million, one hundred thirty-seven thousand, seven hundred forty-seven".