127621628654 has 12 divisors (see below), whose sum is σ = 207290752416. Its totient is φ = 58902289992.

The previous prime is 127621628653. The next prime is 127621628671. The reversal of 127621628654 is 456826126721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127621628653) 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 5 ways as a sum of consecutive naturals, for example, 188789054 + ... + 188789729.

It is an arithmetic number, because the mean of its divisors is an integer number (17274229368).

Almost surely, 2^127621628654 is an apocalyptic number.

127621628654 is a deficient number, since it is larger than the sum of its proper divisors (79669123762).

127621628654 is a wasteful number, since it uses less digits than its factorization.

127621628654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377578811 (or 377578798 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The spelling of 127621628654 in words is "one hundred twenty-seven billion, six hundred twenty-one million, six hundred twenty-eight thousand, six hundred fifty-four".