127025940091 has 8 divisors (see below), whose sum is σ = 135479794320. Its totient is φ = 118681168128.

The previous prime is 127025940059. The next prime is 127025940137. The reversal of 127025940091 is 190049520721.

It is a happy number.

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

It is not a de Polignac number, because 127025940091 - 2⁵ = 127025940059 is a prime.

It is a super-2 number, since 2×127025940091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127025940031) 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, 27268161 + ... + 27272818.

It is an arithmetic number, because the mean of its divisors is an integer number (16934974290).

Almost surely, 2^127025940091 is an apocalyptic number.

127025940091 is a deficient number, since it is larger than the sum of its proper divisors (8453854229).

127025940091 is a wasteful number, since it uses less digits than its factorization.

127025940091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54541133.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 127025940091 in words is "one hundred twenty-seven billion, twenty-five million, nine hundred forty thousand, ninety-one".