3148643720 has 16 divisors (see below), whose sum is σ = 7084448460. Its totient is φ = 1259457472.

The previous prime is 3148643717. The next prime is 3148643731. The reversal of 3148643720 is 273468413.

It can be written as a sum of positive squares in 2 ways, for example, as 3069824836 + 78818884 = 55406^2 + 8878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39358007 + ... + 39358086.

Almost surely, 2^3148643720 is an apocalyptic number.

It is an amenable number.

3148643720 is an abundant number, since it is smaller than the sum of its proper divisors (3935804740).

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

3148643720 is a wasteful number, since it uses less digits than its factorization.

3148643720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78716104 (or 78716100 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 3148643720 is about 56112.7767981589. The cubic root of 3148643720 is about 1465.6867906264.

The spelling of 3148643720 in words is "three billion, one hundred forty-eight million, six hundred forty-three thousand, seven hundred twenty".