7491349648 has 10 divisors (see below), whose sum is σ = 14514489974. Its totient is φ = 3745674816.

The previous prime is 7491349639. The next prime is 7491349667. The reversal of 7491349648 is 8469431947.

It can be written as a sum of positive squares in only one way, i.e., 7280867584 + 210482064 = 85328^2 + 14508^2 .

It is a super-2 number, since 2×7491349648² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234104661 + ... + 234104692.

Almost surely, 2^7491349648 is an apocalyptic number.

It is an amenable number.

7491349648 is a deficient number, since it is larger than the sum of its proper divisors (7023140326).

7491349648 is a wasteful number, since it uses less digits than its factorization.

7491349648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468209361 (or 468209355 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 7491349648 is about 86552.5831388064. The cubic root of 7491349648 is about 1956.6809758908.

The spelling of 7491349648 in words is "seven billion, four hundred ninety-one million, three hundred forty-nine thousand, six hundred forty-eight".