2723481657 has 64 divisors (see below), whose sum is σ = 4509030400. Its totient is φ = 1613364480.

The previous prime is 2723481653. The next prime is 2723481667. The reversal of 2723481657 is 7561843272.

It is not a de Polignac number, because 2723481657 - 2² = 2723481653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2723481653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2491203 + ... + 2492295.

It is an arithmetic number, because the mean of its divisors is an integer number (70453600).

Almost surely, 2^2723481657 is an apocalyptic number.

2723481657 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2723481657 is a deficient number, since it is larger than the sum of its proper divisors (1785548743).

2723481657 is a wasteful number, since it uses less digits than its factorization.

2723481657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1369 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 2723481657 is about 52186.9874298182. The cubic root of 2723481657 is about 1396.5017519225.

The spelling of 2723481657 in words is "two billion, seven hundred twenty-three million, four hundred eighty-one thousand, six hundred fifty-seven".