127402121975 has 12 divisors (see below), whose sum is σ = 159881990856. Its totient is φ = 100693723680.

The previous prime is 127402121969. The next prime is 127402121981. The reversal of 127402121975 is 579121204721.

It is an interprime number because it is at equal distance from previous prime (127402121969) and next prime (127402121981).

It is not a de Polignac number, because 127402121975 - 2³² = 123107154679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30697232 + ... + 30701381.

It is an arithmetic number, because the mean of its divisors is an integer number (13323499238).

Almost surely, 2^127402121975 is an apocalyptic number.

127402121975 is a deficient number, since it is larger than the sum of its proper divisors (32479868881).

127402121975 is an equidigital number, since it uses as much as digits as its factorization.

127402121975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61398706 (or 61398701 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 127402121975 in words is "one hundred twenty-seven billion, four hundred two million, one hundred twenty-one thousand, nine hundred seventy-five".