47186840640 has 112 divisors (see below), whose sum is σ = 152357693760. Its totient is φ = 12369868800.

The previous prime is 47186840627. The next prime is 47186840663. The reversal of 47186840640 is 4604868174.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 47186840640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359911 + ... + 473190.

Almost surely, 2^47186840640 is an apocalyptic number.

47186840640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47186840640 is an abundant number, since it is smaller than the sum of its proper divisors (105170853120).

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

47186840640 is a wasteful number, since it uses less digits than its factorization.

47186840640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833180 (or 833170 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 47186840640 in words is "forty-seven billion, one hundred eighty-six million, eight hundred forty thousand, six hundred forty".