100374278761 has 3 divisors (see below), whose sum is σ = 100374595581. Its totient is φ = 100373961942.

The previous prime is 100374278743. The next prime is 100374278777. The reversal of 100374278761 is 167872473001.

The square root of 100374278761 is 316819.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 100374278761 - 2¹¹ = 100374276713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100374278701) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 158410 + ... + 475228.

It is an arithmetic number, because the mean of its divisors is an integer number (33458198527).

Almost surely, 2^100374278761 is an apocalyptic number.

100374278761 is the 316819-th square number.

100374278761 is the 158410-th centered octagonal number.

It is an amenable number.

100374278761 is a deficient number, since it is larger than the sum of its proper divisors (316820).

100374278761 is an frugal number, since it uses more digits than its factorization.

100374278761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633638 (or 316819 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 100374278761 in words is "one hundred billion, three hundred seventy-four million, two hundred seventy-eight thousand, seven hundred sixty-one".