47137020520 has 16 divisors (see below), whose sum is σ = 106058296260. Its totient is φ = 18854808192.

The previous prime is 47137020503. The next prime is 47137020611. The reversal of 47137020520 is 2502073174.

It can be written as a sum of positive squares in 2 ways, for example, as 43289795844 + 3847224676 = 208062^2 + 62026^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589212717 + ... + 589212796.

Almost surely, 2^47137020520 is an apocalyptic number.

47137020520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47137020520 is an abundant number, since it is smaller than the sum of its proper divisors (58921275740).

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

47137020520 is a wasteful number, since it uses less digits than its factorization.

47137020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178425524 (or 1178425520 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

Adding to 47137020520 its reverse (2502073174), we get a palindrome (49639093694).

The spelling of 47137020520 in words is "forty-seven billion, one hundred thirty-seven million, twenty thousand, five hundred twenty".