23487257387 has 8 divisors (see below), whose sum is σ = 25663863360. Its totient is φ = 21317551560.

The previous prime is 23487257357. The next prime is 23487257399. The reversal of 23487257387 is 78375278432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23487257387 - 2¹⁶ = 23487191851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23487257327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717913 + ... + 1731530.

It is an arithmetic number, because the mean of its divisors is an integer number (3207982920).

Almost surely, 2^23487257387 is an apocalyptic number.

23487257387 is a deficient number, since it is larger than the sum of its proper divisors (2176605973).

23487257387 is a wasteful number, since it uses less digits than its factorization.

23487257387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450073.

The product of its digits is 15805440, while the sum is 56.

The spelling of 23487257387 in words is "twenty-three billion, four hundred eighty-seven million, two hundred fifty-seven thousand, three hundred eighty-seven".