6149078643 has 4 divisors (see below), whose sum is σ = 8198771528. Its totient is φ = 4099385760.

The previous prime is 6149078641. The next prime is 6149078651. The reversal of 6149078643 is 3468709416.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6149078643 - 2¹ = 6149078641 is a prime.

It is a super-2 number, since 2×6149078643² = 75622336315597442898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6149078592 and 6149078601.

It is not an unprimeable number, because it can be changed into a prime (6149078641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024846438 + ... + 1024846443.

It is an arithmetic number, because the mean of its divisors is an integer number (2049692882).

Almost surely, 2^6149078643 is an apocalyptic number.

6149078643 is a deficient number, since it is larger than the sum of its proper divisors (2049692885).

6149078643 is a wasteful number, since it uses less digits than its factorization.

6149078643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049692884.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 6149078643 is about 78416.0611290825. The cubic root of 6149078643 is about 1832.0473014418.

The spelling of 6149078643 in words is "six billion, one hundred forty-nine million, seventy-eight thousand, six hundred forty-three".