7629321905 has 16 divisors (see below), whose sum is σ = 9275834880. Its totient is φ = 6023105088.

The previous prime is 7629321851. The next prime is 7629321937. The reversal of 7629321905 is 5091239267.

It is a cyclic number.

It is not a de Polignac number, because 7629321905 - 2⁶ = 7629321841 is a prime.

It is a super-2 number, since 2×7629321905² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1048259 + ... + 1055511.

It is an arithmetic number, because the mean of its divisors is an integer number (579739680).

Almost surely, 2^7629321905 is an apocalyptic number.

It is an amenable number.

7629321905 is a deficient number, since it is larger than the sum of its proper divisors (1646512975).

7629321905 is a wasteful number, since it uses less digits than its factorization.

7629321905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 7629321905 is about 87345.9896331824. The cubic root of 7629321905 is about 1968.6203938128.

The spelling of 7629321905 in words is "seven billion, six hundred twenty-nine million, three hundred twenty-one thousand, nine hundred five".