127073472765 has 16 divisors (see below), whose sum is σ = 203437407168. Its totient is φ = 67732568576.

The previous prime is 127073472761. The next prime is 127073472767. The reversal of 127073472765 is 567274370721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 127073472765 - 2² = 127073472761 is a prime.

It is a super-2 number, since 2×127073472765² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127073472761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470587 + ... + 2521496.

It is an arithmetic number, because the mean of its divisors is an integer number (12714837948).

Almost surely, 2^127073472765 is an apocalyptic number.

127073472765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127073472765 is a deficient number, since it is larger than the sum of its proper divisors (76363934403).

127073472765 is a wasteful number, since it uses less digits than its factorization.

127073472765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993788.

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 127073472765 in words is "one hundred twenty-seven billion, seventy-three million, four hundred seventy-two thousand, seven hundred sixty-five".