40247729501834 has 16 divisors (see below), whose sum is σ = 60384123191808. Its totient is φ = 20119688850432.

The previous prime is 40247729501831. The next prime is 40247729501843. The reversal of 40247729501834 is 43810592774204.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40247729501834.

It is not an unprimeable number, because it can be changed into a prime (40247729501831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218423489 + ... + 218607675.

It is an arithmetic number, because the mean of its divisors is an integer number (3774007699488).

Almost surely, 2^{40247729501834} is an apocalyptic number.

40247729501834 is a deficient number, since it is larger than the sum of its proper divisors (20136393689974).

40247729501834 is a wasteful number, since it uses less digits than its factorization.

40247729501834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206269.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 40247729501834 in words is "forty trillion, two hundred forty-seven billion, seven hundred twenty-nine million, five hundred one thousand, eight hundred thirty-four".