100421745858277 has 16 divisors (see below), whose sum is σ = 101463419156400. Its totient is φ = 99384911331328.

The previous prime is 100421745858199. The next prime is 100421745858349. The reversal of 100421745858277 is 772858547124001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1353345995556 + 99068399862721 = 1163334^2 + 9953311^2 .

It is a cyclic number.

It is not a de Polignac number, because 100421745858277 - 2¹⁵ = 100421745825509 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 (100421745868277) 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, 74190603 + ... + 75532039.

It is an arithmetic number, because the mean of its divisors is an integer number (6341463697275).

Almost surely, 2^{100421745858277} is an apocalyptic number.

It is an amenable number.

100421745858277 is a deficient number, since it is larger than the sum of its proper divisors (1041673298123).

100421745858277 is a wasteful number, since it uses less digits than its factorization.

100421745858277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343240.

The product of its (nonzero) digits is 35123200, while the sum is 61.

The spelling of 100421745858277 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred fifty-eight thousand, two hundred seventy-seven".