40577752945 has 4 divisors (see below), whose sum is σ = 48693303540. Its totient is φ = 32462202352.

The previous prime is 40577752889. The next prime is 40577752949. The reversal of 40577752945 is 54925777504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25961910129 + 14615842816 = 161127^2 + 120896^2 .

It is a cyclic number.

It is not a de Polignac number, because 40577752945 - 2⁹ = 40577752433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40577752949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057775290 + ... + 4057775299.

It is an arithmetic number, because the mean of its divisors is an integer number (12173325885).

Almost surely, 2^40577752945 is an apocalyptic number.

It is an amenable number.

40577752945 is a deficient number, since it is larger than the sum of its proper divisors (8115550595).

40577752945 is an equidigital number, since it uses as much as digits as its factorization.

40577752945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115550594.

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 40577752945 in words is "forty billion, five hundred seventy-seven million, seven hundred fifty-two thousand, nine hundred forty-five".