5401640872 has 16 divisors (see below), whose sum is σ = 10661133600. Its totient is φ = 2558671920.

The previous prime is 5401640861. The next prime is 5401640897. The reversal of 5401640872 is 2780461045.

It is a super-2 number, since 2×5401640872² = 58355448220121840768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17768404 + ... + 17768707.

It is an arithmetic number, because the mean of its divisors is an integer number (666320850).

Almost surely, 2^5401640872 is an apocalyptic number.

It is an amenable number.

5401640872 is a deficient number, since it is larger than the sum of its proper divisors (5259492728).

5401640872 is a wasteful number, since it uses less digits than its factorization.

5401640872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35537136 (or 35537132 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 5401640872 is about 73495.8561552963. The cubic root of 5401640872 is about 1754.5883263700.

The spelling of 5401640872 in words is "five billion, four hundred one million, six hundred forty thousand, eight hundred seventy-two".