30557807850 has 24 divisors (see below), whose sum is σ = 75783363840. Its totient is φ = 8148748720.

The previous prime is 30557807837. The next prime is 30557807857. The reversal of 30557807850 is 5870875503.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30557807850.

It is not an unprimeable number, because it can be changed into a prime (30557807857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101859210 + ... + 101859509.

It is an arithmetic number, because the mean of its divisors is an integer number (3157640160).

Almost surely, 2^30557807850 is an apocalyptic number.

30557807850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30557807850 is an abundant number, since it is smaller than the sum of its proper divisors (45225555990).

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

30557807850 is a wasteful number, since it uses less digits than its factorization.

30557807850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203718734 (or 203718729 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 30557807850 in words is "thirty billion, five hundred fifty-seven million, eight hundred seven thousand, eight hundred fifty".