7640293149 has 12 divisors (see below), whose sum is σ = 11071468512. Its totient is φ = 5077149000.

The previous prime is 7640293147. The next prime is 7640293183. The reversal of 7640293149 is 9413920467.

It is a happy number.

It is not a de Polignac number, because 7640293149 - 2¹ = 7640293147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640293147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1362027 + ... + 1367624.

It is an arithmetic number, because the mean of its divisors is an integer number (922622376).

Almost surely, 2^7640293149 is an apocalyptic number.

It is an amenable number.

7640293149 is a deficient number, since it is larger than the sum of its proper divisors (3431175363).

7640293149 is a wasteful number, since it uses less digits than its factorization.

7640293149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729968 (or 2729965 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 7640293149 is about 87408.7704352372. The cubic root of 7640293149 is about 1969.5635912209.

The spelling of 7640293149 in words is "seven billion, six hundred forty million, two hundred ninety-three thousand, one hundred forty-nine".