28451850307463 has 4 divisors (see below), whose sum is σ = 31038382153608. Its totient is φ = 25865318461320.

The previous prime is 28451850307453. The next prime is 28451850307487. The reversal of 28451850307463 is 36470305815482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28451850307463 - 2²⁰ = 28451849258887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28451850307399 and 28451850307408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28451850307453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1293265923056 + ... + 1293265923077.

It is an arithmetic number, because the mean of its divisors is an integer number (7759595538402).

Almost surely, 2^{28451850307463} is an apocalyptic number.

28451850307463 is a deficient number, since it is larger than the sum of its proper divisors (2586531846145).

28451850307463 is a wasteful number, since it uses less digits than its factorization.

28451850307463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586531846144.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 28451850307463 in words is "twenty-eight trillion, four hundred fifty-one billion, eight hundred fifty million, three hundred seven thousand, four hundred sixty-three".