7649505998 has 16 divisors (see below), whose sum is σ = 11859872640. Its totient is φ = 3696537600.

The previous prime is 7649505979. The next prime is 7649506021. The reversal of 7649505998 is 8995059467.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 7649505998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32543 + ... + 127898.

It is an arithmetic number, because the mean of its divisors is an integer number (741242040).

Almost surely, 2^7649505998 is an apocalyptic number.

7649505998 is a deficient number, since it is larger than the sum of its proper divisors (4210366642).

7649505998 is a wasteful number, since it uses less digits than its factorization.

7649505998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161243.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The square root of 7649505998 is about 87461.4543556189. The cubic root of 7649505998 is about 1970.3549222666.

The spelling of 7649505998 in words is "seven billion, six hundred forty-nine million, five hundred five thousand, nine hundred ninety-eight".