7497919906 has 16 divisors (see below), whose sum is σ = 11308074048. Its totient is φ = 3728617200.

The previous prime is 7497919889. The next prime is 7497919907. The reversal of 7497919906 is 6099197947.

It is not an unprimeable number, because it can be changed into a prime (7497919907) by changing a digit.

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, 265251 + ... + 292153.

It is an arithmetic number, because the mean of its divisors is an integer number (706754628).

Almost surely, 2^7497919906 is an apocalyptic number.

7497919906 is a deficient number, since it is larger than the sum of its proper divisors (3810154142).

7497919906 is a wasteful number, since it uses less digits than its factorization.

7497919906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27657.

The product of its (nonzero) digits is 7715736, while the sum is 61.

The square root of 7497919906 is about 86590.5301173287. The cubic root of 7497919906 is about 1957.2528417924.

The spelling of 7497919906 in words is "seven billion, four hundred ninety-seven million, nine hundred nineteen thousand, nine hundred six".