28452464901 has 36 divisors (see below), whose sum is σ = 47824140000. Its totient is φ = 16253023248.

The previous prime is 28452464867. The next prime is 28452464917. The reversal of 28452464901 is 10946425482.

It is a happy number.

28452464901 is a `hidden beast` number, since 2 + 84 + 524 + 6 + 49 + 0 + 1 = 666.

It is not a de Polignac number, because 28452464901 - 2¹⁰ = 28452463877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28452464941) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1533840 + ... + 1552278.

Almost surely, 2^28452464901 is an apocalyptic number.

28452464901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28452464901 is a deficient number, since it is larger than the sum of its proper divisors (19371675099).

28452464901 is a wasteful number, since it uses less digits than its factorization.

28452464901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21958 (or 21948 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 28452464901 in words is "twenty-eight billion, four hundred fifty-two million, four hundred sixty-four thousand, nine hundred one".