5121173805 has 48 divisors (see below), whose sum is σ = 9236711232. Its totient is φ = 2402822400.

The previous prime is 5121173777. The next prime is 5121173819. The reversal of 5121173805 is 5083711215.

It is not a de Polignac number, because 5121173805 - 2⁵ = 5121173773 is a prime.

It is a super-2 number, since 2×5121173805² = 52452842282036356050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142417 + ... + 174713.

It is an arithmetic number, because the mean of its divisors is an integer number (192431484).

Almost surely, 2^5121173805 is an apocalyptic number.

5121173805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5121173805 is a deficient number, since it is larger than the sum of its proper divisors (4115537427).

5121173805 is a wasteful number, since it uses less digits than its factorization.

5121173805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32378 (or 32347 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 5121173805 is about 71562.3770217284. The cubic root of 5121173805 is about 1723.6794547849.

The spelling of 5121173805 in words is "five billion, one hundred twenty-one million, one hundred seventy-three thousand, eight hundred five".