7490016893 has 16 divisors (see below), whose sum is σ = 8228982384. Its totient is φ = 6788136960.

The previous prime is 7490016871. The next prime is 7490016917. The reversal of 7490016893 is 3986100947.

It can be written as a sum of positive squares in 8 ways, for example, as 294396964 + 7195619929 = 17158^2 + 84827^2 .

It is a cyclic number.

It is not a de Polignac number, because 7490016893 - 2¹² = 7490012797 is a prime.

It is a super-2 number, since 2×7490016893² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490016803) 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, 368 + ... + 122393.

It is an arithmetic number, because the mean of its divisors is an integer number (514311399).

Almost surely, 2^7490016893 is an apocalyptic number.

It is an amenable number.

7490016893 is a deficient number, since it is larger than the sum of its proper divisors (738965491).

7490016893 is a wasteful number, since it uses less digits than its factorization.

7490016893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122912.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 7490016893 is about 86544.8836904874. The cubic root of 7490016893 is about 1956.5649340053.

The spelling of 7490016893 in words is "seven billion, four hundred ninety million, sixteen thousand, eight hundred ninety-three".