73640312850 has 48 divisors (see below), whose sum is σ = 196676286912. Its totient is φ = 18126845760.

The previous prime is 73640312827. The next prime is 73640312873. The reversal of 73640312850 is 5821304637.

It is an interprime number because it is at equal distance from previous prime (73640312827) and next prime (73640312873).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 73640312799 and 73640312808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18880182 + ... + 18884081.

It is an arithmetic number, because the mean of its divisors is an integer number (4097422644).

Almost surely, 2^73640312850 is an apocalyptic number.

73640312850 is an abundant number, since it is smaller than the sum of its proper divisors (123035974062).

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

73640312850 is a wasteful number, since it uses less digits than its factorization.

73640312850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37764291 (or 37764286 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 73640312850 in words is "seventy-three billion, six hundred forty million, three hundred twelve thousand, eight hundred fifty".