745571946651 has 16 divisors (see below), whose sum is σ = 1136221092864. Its totient is φ = 425999314944.

The previous prime is 745571946641. The next prime is 745571946653. The reversal of 745571946651 is 156649175547.

745571946651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 745571946651 - 2⁹ = 745571946139 is a prime.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1521766 + ... + 1951131.

It is an arithmetic number, because the mean of its divisors is an integer number (71013818304).

Almost surely, 2^745571946651 is an apocalyptic number.

745571946651 is a deficient number, since it is larger than the sum of its proper divisors (390649146213).

745571946651 is a wasteful number, since it uses less digits than its factorization.

745571946651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483130.

The product of its digits is 31752000, while the sum is 60.

The spelling of 745571946651 in words is "seven hundred forty-five billion, five hundred seventy-one million, nine hundred forty-six thousand, six hundred fifty-one".