7345981690 has 64 divisors (see below), whose sum is σ = 14326502400. Its totient is φ = 2701910016.

The previous prime is 7345981651. The next prime is 7345981691. The reversal of 7345981690 is 961895437.

It is a happy number.

It is a super-4 number, since 4×7345981690⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7345981691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1299891 + ... + 1305529.

It is an arithmetic number, because the mean of its divisors is an integer number (223851600).

Almost surely, 2^7345981690 is an apocalyptic number.

7345981690 is a deficient number, since it is larger than the sum of its proper divisors (6980520710).

7345981690 is a wasteful number, since it uses less digits than its factorization.

7345981690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 7345981690 is about 85708.7025336401. The cubic root of 7345981690 is about 1943.9418990931.

The spelling of 7345981690 in words is "seven billion, three hundred forty-five million, nine hundred eighty-one thousand, six hundred ninety".