7626618745 has 4 divisors (see below), whose sum is σ = 9151942500. Its totient is φ = 6101294992.

The previous prime is 7626618709. The next prime is 7626618787. The reversal of 7626618745 is 5478166267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5478166267 = 7 ⋅782595181.

It can be written as a sum of positive squares in 2 ways, for example, as 4726150009 + 2900468736 = 68747^2 + 53856^2 .

It is a cyclic number.

It is not a de Polignac number, because 7626618745 - 2¹³ = 7626610553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7626618692 and 7626618701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762661870 + ... + 762661879.

It is an arithmetic number, because the mean of its divisors is an integer number (2287985625).

Almost surely, 2^7626618745 is an apocalyptic number.

It is an amenable number.

7626618745 is a deficient number, since it is larger than the sum of its proper divisors (1525323755).

7626618745 is a wasteful number, since it uses less digits than its factorization.

7626618745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525323754.

The product of its digits is 3386880, while the sum is 52.

The square root of 7626618745 is about 87330.5143978896. The cubic root of 7626618745 is about 1968.3878644311.

The spelling of 7626618745 in words is "seven billion, six hundred twenty-six million, six hundred eighteen thousand, seven hundred forty-five".