23149245515 has 16 divisors (see below), whose sum is σ = 30525677280. Its totient is φ = 16712920320.

The previous prime is 23149245473. The next prime is 23149245541. The reversal of 23149245515 is 51554294132.

It is not a de Polignac number, because 23149245515 - 2¹² = 23149241419 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528580 + ... + 1543649.

It is an arithmetic number, because the mean of its divisors is an integer number (1907854830).

Almost surely, 2^23149245515 is an apocalyptic number.

23149245515 is a deficient number, since it is larger than the sum of its proper divisors (7376431765).

23149245515 is a wasteful number, since it uses less digits than its factorization.

23149245515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072382.

The product of its digits is 216000, while the sum is 41.

The spelling of 23149245515 in words is "twenty-three billion, one hundred forty-nine million, two hundred forty-five thousand, five hundred fifteen".