5161432540 has 24 divisors (see below), whose sum is σ = 11824373232. Its totient is φ = 1876884480.

The previous prime is 5161432519. The next prime is 5161432547. The reversal of 5161432540 is 452341615.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161432547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11730309 + ... + 11730748.

It is an arithmetic number, because the mean of its divisors is an integer number (492682218).

Almost surely, 2^5161432540 is an apocalyptic number.

It is an amenable number.

5161432540 is an abundant number, since it is smaller than the sum of its proper divisors (6662940692).

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

5161432540 is a wasteful number, since it uses less digits than its factorization.

5161432540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23461077 (or 23461075 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5161432540 is about 71843.1105952408. The cubic root of 5161432540 is about 1728.1844184569.

The spelling of 5161432540 in words is "five billion, one hundred sixty-one million, four hundred thirty-two thousand, five hundred forty".