7649740993 has 16 divisors (see below), whose sum is σ = 8209944000. Its totient is φ = 7105931712.

The previous prime is 7649740991. The next prime is 7649741023. The reversal of 7649740993 is 3990479467.

It is a cyclic number.

It is not a de Polignac number, because 7649740993 - 2¹ = 7649740991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7649740991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436443 + ... + 453631.

It is an arithmetic number, because the mean of its divisors is an integer number (513121500).

Almost surely, 2^7649740993 is an apocalyptic number.

It is an amenable number.

7649740993 is a deficient number, since it is larger than the sum of its proper divisors (560203007).

7649740993 is a wasteful number, since it uses less digits than its factorization.

7649740993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17664.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The square root of 7649740993 is about 87462.7977656786. The cubic root of 7649740993 is about 1970.3750986812.

The spelling of 7649740993 in words is "seven billion, six hundred forty-nine million, seven hundred forty thousand, nine hundred ninety-three".