40279539712 has 34 divisors (see below), whose sum is σ = 80558595878. Its totient is φ = 20139737088.

The previous prime is 40279539691. The next prime is 40279539719. The reversal of 40279539712 is 21793597204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35984572416 + 4294967296 = 189696^2 + 65536^2 .

It is not an unprimeable number, because it can be changed into a prime (40279539719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241773 + ... + 372844.

It is an arithmetic number, because the mean of its divisors is an integer number (2369370467).

Almost surely, 2^40279539712 is an apocalyptic number.

It is an amenable number.

40279539712 is a deficient number, since it is larger than the sum of its proper divisors (40279056166).

40279539712 is an frugal number, since it uses more digits than its factorization.

40279539712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614649 (or 614619 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 40279539712 in words is "forty billion, two hundred seventy-nine million, five hundred thirty-nine thousand, seven hundred twelve".