7614891649 has 4 divisors (see below), whose sum is σ = 8015675440. Its totient is φ = 7214107860.

The previous prime is 7614891593. The next prime is 7614891761. The reversal of 7614891649 is 9461984167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9461984167 = 59 ⋅160372613.

It is a cyclic number.

It is not a de Polignac number, because 7614891649 - 2¹⁷ = 7614760577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7614891649.

It is not an unprimeable number, because it can be changed into a prime (7614895649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200391867 + ... + 200391904.

It is an arithmetic number, because the mean of its divisors is an integer number (2003918860).

Almost surely, 2^7614891649 is an apocalyptic number.

It is an amenable number.

7614891649 is a deficient number, since it is larger than the sum of its proper divisors (400783791).

7614891649 is a wasteful number, since it uses less digits than its factorization.

7614891649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400783790.

The product of its digits is 2612736, while the sum is 55.

The square root of 7614891649 is about 87263.3465379365. The cubic root of 7614891649 is about 1967.3784474666.

The spelling of 7614891649 in words is "seven billion, six hundred fourteen million, eight hundred ninety-one thousand, six hundred forty-nine".