127620000397 has 4 divisors (see below), whose sum is σ = 129235443520. Its totient is φ = 126004557276.

The previous prime is 127620000377. The next prime is 127620000491. The reversal of 127620000397 is 793000026721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127620000397 - 2²³ = 127611611789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127620000377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807721443 + ... + 807721600.

It is an arithmetic number, because the mean of its divisors is an integer number (32308860880).

Almost surely, 2^127620000397 is an apocalyptic number.

127620000397 is the 190953-rd centered heptagonal number.

It is an amenable number.

127620000397 is a deficient number, since it is larger than the sum of its proper divisors (1615443123).

127620000397 is an equidigital number, since it uses as much as digits as its factorization.

127620000397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615443122.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 127620000397 in words is "one hundred twenty-seven billion, six hundred twenty million, three hundred ninety-seven", and thus it is an aban number.