40499152546 has 4 divisors (see below), whose sum is σ = 60748728822. Its totient is φ = 20249576272.

The previous prime is 40499152531. The next prime is 40499152549. The reversal of 40499152546 is 64525199404.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 40485866521 + 13286025 = 201211^2 + 3645^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 40499152546.

It is not an unprimeable number, because it can be changed into a prime (40499152549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10124788135 + ... + 10124788138.

Almost surely, 2^40499152546 is an apocalyptic number.

40499152546 is a deficient number, since it is larger than the sum of its proper divisors (20249576276).

40499152546 is a wasteful number, since it uses less digits than its factorization.

40499152546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20249576275.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 40499152546 in words is "forty billion, four hundred ninety-nine million, one hundred fifty-two thousand, five hundred forty-six".