745471677605641 has 16 divisors (see below), whose sum is σ = 902169675080064. Its totient is φ = 601331382722304.

The previous prime is 745471677605593. The next prime is 745471677605657. The reversal of 745471677605641 is 146506776174547.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 745471677605641 - 2¹⁵ = 745471677572873 is a prime.

It is a super-2 number, since 2×745471677605641² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745471677605671) 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, 298405375 + ... + 300893188.

It is an arithmetic number, because the mean of its divisors is an integer number (56385604692504).

Almost surely, 2^{745471677605641} is an apocalyptic number.

It is an amenable number.

745471677605641 is a deficient number, since it is larger than the sum of its proper divisors (156697997474423).

745471677605641 is a wasteful number, since it uses less digits than its factorization.

745471677605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599309040.

The product of its (nonzero) digits is 829785600, while the sum is 70.

The spelling of 745471677605641 in words is "seven hundred forty-five trillion, four hundred seventy-one billion, six hundred seventy-seven million, six hundred five thousand, six hundred forty-one".