47017251840 has 352 divisors, whose sum is σ = 165928444416. Its totient is φ = 11289231360.

The previous prime is 47017251811. The next prime is 47017251947. The reversal of 47017251840 is 4815271074.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8184009 + ... + 8189751.

Almost surely, 2^47017251840 is an apocalyptic number.

47017251840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47017251840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82964222208).

47017251840 is an abundant number, since it is smaller than the sum of its proper divisors (118911192576).

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

47017251840 is a wasteful number, since it uses less digits than its factorization.

47017251840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 47017251840 in words is "forty-seven billion, seventeen million, two hundred fifty-one thousand, eight hundred forty".