100127775620638 has 16 divisors (see below), whose sum is σ = 158217449253120. Its totient is φ = 47392657917336.

The previous prime is 100127775620623. The next prime is 100127775620647. The reversal of 100127775620638 is 836026577721001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007961606 + ... + 1008060937.

It is an arithmetic number, because the mean of its divisors is an integer number (9888590578320).

Almost surely, 2^{100127775620638} is an apocalyptic number.

100127775620638 is a deficient number, since it is larger than the sum of its proper divisors (58089673632482).

100127775620638 is a wasteful number, since it uses less digits than its factorization.

100127775620638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016023871.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 100127775620638 in words is "one hundred trillion, one hundred twenty-seven billion, seven hundred seventy-five million, six hundred twenty thousand, six hundred thirty-eight".