28100737266 has 24 divisors (see below), whose sum is σ = 65377226160. Its totient is φ = 8028781992.

The previous prime is 28100737253. The next prime is 28100737267. The reversal of 28100737266 is 66273700182.

It is a super-2 number, since 2×28100737266² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28100737267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47790076 + ... + 47790663.

It is an arithmetic number, because the mean of its divisors is an integer number (2724051090).

Almost surely, 2^28100737266 is an apocalyptic number.

28100737266 is an abundant number, since it is smaller than the sum of its proper divisors (37276488894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28100737266 is a wasteful number, since it uses less digits than its factorization.

28100737266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95580758 (or 95580751 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 28100737266 in words is "twenty-eight billion, one hundred million, seven hundred thirty-seven thousand, two hundred sixty-six".