127478989763 has 24 divisors (see below), whose sum is σ = 131718742848. Its totient is φ = 123346504512.

The previous prime is 127478989753. The next prime is 127478989783. The reversal of 127478989763 is 367989874721.

It is a Cunningham number, because it is equal to 357042²-1.

It is not a de Polignac number, because 127478989763 - 2¹⁴ = 127478973379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127478989753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109611620 + ... + 109612782.

It is an arithmetic number, because the mean of its divisors is an integer number (5488280952).

Almost surely, 2^127478989763 is an apocalyptic number.

127478989763 is a deficient number, since it is larger than the sum of its proper divisors (4239753085).

127478989763 is an equidigital number, since it uses as much as digits as its factorization.

127478989763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1610 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 71.

The spelling of 127478989763 in words is "one hundred twenty-seven billion, four hundred seventy-eight million, nine hundred eighty-nine thousand, seven hundred sixty-three".