7426449680 has 40 divisors (see below), whose sum is σ = 18594690072. Its totient is φ = 2742073344.

The previous prime is 7426449647. The next prime is 7426449703. The reversal of 7426449680 is 869446247.

It can be written as a sum of positive squares in 4 ways, for example, as 496220176 + 6930229504 = 22276^2 + 83248^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3569369 + ... + 3571448.

Almost surely, 2^7426449680 is an apocalyptic number.

It is an amenable number.

7426449680 is an abundant number, since it is smaller than the sum of its proper divisors (11168240392).

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

7426449680 is a wasteful number, since it uses less digits than its factorization.

7426449680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140843 (or 7140837 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The square root of 7426449680 is about 86176.8511840622. The cubic root of 7426449680 is about 1951.0141277663.

The spelling of 7426449680 in words is "seven billion, four hundred twenty-six million, four hundred forty-nine thousand, six hundred eighty".