7563451650064 has 30 divisors (see below), whose sum is σ = 15566905146554. Its totient is φ = 3559271362560.

The previous prime is 7563451650019. The next prime is 7563451650067. The reversal of 7563451650064 is 4600561543657.

It can be written as a sum of positive squares in 3 ways, for example, as 3391269571600 + 4172182078464 = 1841540^2 + 2042592^2 .

It is a super-2 number, since 2×7563451650064² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7563451649993 and 7563451650020.

It is not an unprimeable number, because it can be changed into a prime (7563451650067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 817842657 + ... + 817851904.

Almost surely, 2^{7563451650064} is an apocalyptic number.

It is an amenable number.

7563451650064 is an abundant number, since it is smaller than the sum of its proper divisors (8003453496490).

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

7563451650064 is a wasteful number, since it uses less digits than its factorization.

7563451650064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635694603 (or 1635694580 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 7563451650064 in words is "seven trillion, five hundred sixty-three billion, four hundred fifty-one million, six hundred fifty thousand, sixty-four".