3129893755 has 4 divisors (see below), whose sum is σ = 3755872512. Its totient is φ = 2503915000.

The previous prime is 3129893717. The next prime is 3129893771. The reversal of 3129893755 is 5573989213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3129893755 - 2⁹ = 3129893243 is a prime.

It is a Duffinian number.

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, 312989371 + ... + 312989380.

It is an arithmetic number, because the mean of its divisors is an integer number (938968128).

Almost surely, 2^3129893755 is an apocalyptic number.

3129893755 is a deficient number, since it is larger than the sum of its proper divisors (625978757).

3129893755 is an equidigital number, since it uses as much as digits as its factorization.

3129893755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625978756.

The product of its digits is 2041200, while the sum is 52.

The square root of 3129893755 is about 55945.4533898868. The cubic root of 3129893755 is about 1462.7716404872.

The spelling of 3129893755 in words is "three billion, one hundred twenty-nine million, eight hundred ninety-three thousand, seven hundred fifty-five".