745571946650 has 24 divisors (see below), whose sum is σ = 1387533984924. Its totient is φ = 298063152000.

The previous prime is 745571946641. The next prime is 745571946653. The reversal of 745571946650 is 56649175547.

It can be written as a sum of positive squares in 6 ways, for example, as 28455978721 + 717115967929 = 168689^2 + 846827^2 .

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 745571946650.

It is not an unprimeable number, because it can be changed into a prime (745571946653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4049717 + ... + 4229816.

Almost surely, 2^745571946650 is an apocalyptic number.

745571946650 is a deficient number, since it is larger than the sum of its proper divisors (641962038274).

745571946650 is a wasteful number, since it uses less digits than its factorization.

745571946650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8281346 (or 8281341 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 59.

The spelling of 745571946650 in words is "seven hundred forty-five billion, five hundred seventy-one million, nine hundred forty-six thousand, six hundred fifty".