15478287451 has 12 divisors (see below), whose sum is σ = 17084541600. Its totient is φ = 14012269040.

The previous prime is 15478287413. The next prime is 15478287463.

15478287451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15478287451 - 2¹³ = 15478279259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15478287401) 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, 238696 + ... + 296533.

It is an arithmetic number, because the mean of its divisors is an integer number (1423711800).

Almost surely, 2^15478287451 is an apocalyptic number.

15478287451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15478287451 is a deficient number, since it is larger than the sum of its proper divisors (1606254149).

15478287451 is a wasteful number, since it uses less digits than its factorization.

15478287451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535490 (or 535479 counting only the distinct ones).

The product of its digits is 2508800, while the sum is 52.

The spelling of 15478287451 in words is "fifteen billion, four hundred seventy-eight million, two hundred eighty-seven thousand, four hundred fifty-one".