28476900001 has 45 divisors (see below), whose sum is σ = 33891143923. Its totient is φ = 23908641680.

The previous prime is 28476899989. The next prime is 28476900007. The reversal of 28476900001 is 10000967482.

The square root of 28476900001 is 168751.

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

It can be written as a sum of positive squares in only one way, i.e., 14932595601 + 13544304400 = 122199^2 + 116380^2 .

It is not a de Polignac number, because 28476900001 - 2¹³ = 28476891809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28476900007) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 981962055 + ... + 981962083.

Almost surely, 2^28476900001 is an apocalyptic number.

28476900001 is the 168751-st square number.

28476900001 is the 84376-th centered octagonal number.

It is an amenable number.

28476900001 is a deficient number, since it is larger than the sum of its proper divisors (5414243922).

28476900001 is an frugal number, since it uses more digits than its factorization.

28476900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 28476900001 in words is "twenty-eight billion, four hundred seventy-six million, nine hundred thousand, one".