7854493049 has 8 divisors (see below), whose sum is σ = 8903879040. Its totient is φ = 6868706256.

The previous prime is 7854493027. The next prime is 7854493061. The reversal of 7854493049 is 9403944587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7854493049 is a prime.

It is a super-2 number, since 2×7854493049² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7854493249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15899537 + ... + 15900030.

It is an arithmetic number, because the mean of its divisors is an integer number (1112984880).

Almost surely, 2^7854493049 is an apocalyptic number.

It is an amenable number.

7854493049 is a deficient number, since it is larger than the sum of its proper divisors (1049385991).

7854493049 is a wasteful number, since it uses less digits than its factorization.

7854493049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799599.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The square root of 7854493049 is about 88625.5778486098. The cubic root of 7854493049 is about 1987.8001539430.

The spelling of 7854493049 in words is "seven billion, eight hundred fifty-four million, four hundred ninety-three thousand, forty-nine".