7123973490 has 40 divisors (see below), whose sum is σ = 19155575340. Its totient is φ = 1899726048.

The previous prime is 7123973459. The next prime is 7123973497. The reversal of 7123973490 is 943793217.

7123973490 is a `hidden beast` number, since 71 + 2 + 3 + 97 + 3 + 490 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6530417721 + 593555769 = 80811^2 + 24363^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7123973497) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4396705 + ... + 4398324.

Almost surely, 2^7123973490 is an apocalyptic number.

7123973490 is an abundant number, since it is smaller than the sum of its proper divisors (12031601850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7123973490 is a wasteful number, since it uses less digits than its factorization.

7123973490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795048 (or 8795039 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 7123973490 is about 84403.6343411823. The cubic root of 7123973490 is about 1924.1581512611.

The spelling of 7123973490 in words is "seven billion, one hundred twenty-three million, nine hundred seventy-three thousand, four hundred ninety".