3146920785 has 48 divisors (see below), whose sum is σ = 5510668800. Its totient is φ = 1661212800.

The previous prime is 3146920769. The next prime is 3146920807. The reversal of 3146920785 is 5870296413.

3146920785 is digitally balanced in base 2, base 4 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3146920785 - 2⁴ = 3146920769 is a prime.

It is a super-2 number, since 2×3146920785² = 19806220854130032450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

3146920785 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 3146920785.

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, 2370792 + ... + 2372118.

It is an arithmetic number, because the mean of its divisors is an integer number (114805600).

It is a 2-persistent number, because it is pandigital, and so is 2⋅3146920785 = 6293841570, but 3⋅3146920785 = 9440762355 is not.

Almost surely, 2^3146920785 is an apocalyptic number.

It is an amenable number.

3146920785 is a deficient number, since it is larger than the sum of its proper divisors (2363748015).

3146920785 is a wasteful number, since it uses less digits than its factorization.

3146920785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 3146920785 is about 56097.4222669812. The cubic root of 3146920785 is about 1465.4194010193.

The spelling of 3146920785 in words is "three billion, one hundred forty-six million, nine hundred twenty thousand, seven hundred eighty-five".