745454188557 has 64 divisors (see below), whose sum is σ = 1241325388800. Its totient is φ = 439107402240.

The previous prime is 745454188553. The next prime is 745454188643. The reversal of 745454188557 is 755881454547.

745454188557 is a `hidden beast` number, since 7 + 4 + 5 + 4 + 541 + 8 + 85 + 5 + 7 = 666.

It is not a de Polignac number, because 745454188557 - 2² = 745454188553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745454188494 and 745454188503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745454188553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 274044 + ... + 1251402.

It is an arithmetic number, because the mean of its divisors is an integer number (19395709200).

Almost surely, 2^745454188557 is an apocalyptic number.

It is an amenable number.

745454188557 is a deficient number, since it is larger than the sum of its proper divisors (495871200243).

745454188557 is a wasteful number, since it uses less digits than its factorization.

745454188557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977475 (or 977469 counting only the distinct ones).

The product of its digits is 125440000, while the sum is 63.

The spelling of 745454188557 in words is "seven hundred forty-five billion, four hundred fifty-four million, one hundred eighty-eight thousand, five hundred fifty-seven".