7490202646645 has 8 divisors (see below), whose sum is σ = 9516963362904. Its totient is φ = 5639681992704.

The previous prime is 7490202646621. The next prime is 7490202646687. The reversal of 7490202646645 is 5466462020947.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 207534002481 + 7282668644164 = 455559^2 + 2698642^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7490202646645 - 2¹⁵ = 7490202613877 is a prime.

It is a super-2 number, since 2×7490202646645² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44060015484 + ... + 44060015653.

It is an arithmetic number, because the mean of its divisors is an integer number (1189620420363).

Almost surely, 2^{7490202646645} is an apocalyptic number.

It is an amenable number.

7490202646645 is a deficient number, since it is larger than the sum of its proper divisors (2026760716259).

7490202646645 is a wasteful number, since it uses less digits than its factorization.

7490202646645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88120031159.

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 7490202646645 in words is "seven trillion, four hundred ninety billion, two hundred two million, six hundred forty-six thousand, six hundred forty-five".