7619358645 has 24 divisors (see below), whose sum is σ = 13662300600. Its totient is φ = 3923531136.

The previous prime is 7619358631. The next prime is 7619358661. The reversal of 7619358645 is 5468539167.

7619358645 is a `hidden beast` number, since 7 + 6 + 19 + 3 + 586 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1446585156 + 6172773489 = 38034^2 + 78567^2 .

It is not a de Polignac number, because 7619358645 - 2⁴ = 7619358629 is a prime.

It is a super-2 number, since 2×7619358645² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7619358591 and 7619358600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2917990 + ... + 2920599.

It is an arithmetic number, because the mean of its divisors is an integer number (569262525).

Almost surely, 2^7619358645 is an apocalyptic number.

It is an amenable number.

7619358645 is a deficient number, since it is larger than the sum of its proper divisors (6042941955).

7619358645 is a wasteful number, since it uses less digits than its factorization.

7619358645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838629 (or 5838626 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 7619358645 is about 87288.9377011772. The cubic root of 7619358645 is about 1967.7630689942.

The spelling of 7619358645 in words is "seven billion, six hundred nineteen million, three hundred fifty-eight thousand, six hundred forty-five".