40030509539 has 4 divisors (see below), whose sum is σ = 40206855624. Its totient is φ = 39854163456.

The previous prime is 40030509511. The next prime is 40030509557. The reversal of 40030509539 is 93590503004.

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

It is a cyclic number.

It is not a de Polignac number, because 40030509539 - 2²⁰ = 40029460963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40030509509) 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, 88172702 + ... + 88173155.

It is an arithmetic number, because the mean of its divisors is an integer number (10051713906).

Almost surely, 2^40030509539 is an apocalyptic number.

40030509539 is a deficient number, since it is larger than the sum of its proper divisors (176346085).

40030509539 is a wasteful number, since it uses less digits than its factorization.

40030509539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176346084.

The product of its (nonzero) digits is 72900, while the sum is 38.

The spelling of 40030509539 in words is "forty billion, thirty million, five hundred nine thousand, five hundred thirty-nine".