2151494648 has 16 divisors (see below), whose sum is σ = 4143081480. Its totient is φ = 1046672928.

The previous prime is 2151494641. The next prime is 2151494663. The reversal of 2151494648 is 8464941512.

It is a junction number, because it is equal to n+sod(n) for n = 2151494599 and 2151494608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151494641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3633986 + ... + 3634577.

Almost surely, 2^2151494648 is an apocalyptic number.

It is an amenable number.

2151494648 is a deficient number, since it is larger than the sum of its proper divisors (1991586832).

2151494648 is a wasteful number, since it uses less digits than its factorization.

2151494648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7268606 (or 7268602 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 2151494648 is about 46384.2068812220. The cubic root of 2151494648 is about 1290.9618946030.

The spelling of 2151494648 in words is "two billion, one hundred fifty-one million, four hundred ninety-four thousand, six hundred forty-eight".