23530835778 has 16 divisors (see below), whose sum is σ = 47067523680. Its totient is φ = 7842636576.

The previous prime is 23530835767. The next prime is 23530835813. The reversal of 23530835778 is 87753803532.

It is a super-2 number, since 2×23530835778² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23530835778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190675 + ... + 288822.

It is an arithmetic number, because the mean of its divisors is an integer number (2941720230).

Almost surely, 2^23530835778 is an apocalyptic number.

23530835778 is an abundant number, since it is smaller than the sum of its proper divisors (23536687902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23530835778 is a wasteful number, since it uses less digits than its factorization.

23530835778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487681.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 23530835778 in words is "twenty-three billion, five hundred thirty million, eight hundred thirty-five thousand, seven hundred seventy-eight".