15315345451 has 16 divisors (see below), whose sum is σ = 17949980160. Its totient is φ = 12793101120.

The previous prime is 15315345443. The next prime is 15315345467. The reversal of 15315345451 is 15454351351.

It is a cyclic number.

It is not a de Polignac number, because 15315345451 - 2³ = 15315345443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15315345451.

It is not an unprimeable number, because it can be changed into a prime (15315345481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234720 + ... + 292786.

It is an arithmetic number, because the mean of its divisors is an integer number (1121873760).

Almost surely, 2^15315345451 is an apocalyptic number.

15315345451 is a deficient number, since it is larger than the sum of its proper divisors (2634634709).

15315345451 is an equidigital number, since it uses as much as digits as its factorization.

15315345451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59034.

The product of its digits is 90000, while the sum is 37.

The spelling of 15315345451 in words is "fifteen billion, three hundred fifteen million, three hundred forty-five thousand, four hundred fifty-one".