23540635019 has 8 divisors (see below), whose sum is σ = 25685160960. Its totient is φ = 21396853800.

The previous prime is 23540635009. The next prime is 23540635043. The reversal of 23540635019 is 91053604532.

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 23540635019 - 2⁴ = 23540635003 is a prime.

It is a super-2 number, since 2×23540635019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23540635009) 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, 119027 + ... + 247484.

It is an arithmetic number, because the mean of its divisors is an integer number (3210645120).

Almost surely, 2^23540635019 is an apocalyptic number.

23540635019 is a deficient number, since it is larger than the sum of its proper divisors (2144525941).

23540635019 is a wasteful number, since it uses less digits than its factorization.

23540635019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372361.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 23540635019 in words is "twenty-three billion, five hundred forty million, six hundred thirty-five thousand, nineteen".