5171661740 has 96 divisors (see below), whose sum is σ = 12653190144. Its totient is φ = 1738863360.

The previous prime is 5171661739. The next prime is 5171661763. The reversal of 5171661740 is 471661715.

It is a junction number, because it is equal to n+sod(n) for n = 5171661694 and 5171661703.

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, 3782537 + ... + 3783903.

It is an arithmetic number, because the mean of its divisors is an integer number (131804064).

Almost surely, 2^5171661740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5171661740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6326595072).

5171661740 is an abundant number, since it is smaller than the sum of its proper divisors (7481528404).

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

5171661740 is a wasteful number, since it uses less digits than its factorization.

5171661740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 5171661740 is about 71914.2665957180. The cubic root of 5171661740 is about 1729.3253341747.

The spelling of 5171661740 in words is "five billion, one hundred seventy-one million, six hundred sixty-one thousand, seven hundred forty".