40017434751746 has 4 divisors (see below), whose sum is σ = 60026152127622. Its totient is φ = 20008717375872.

The previous prime is 40017434751743. The next prime is 40017434751761. The reversal of 40017434751746 is 64715743471004.

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., 23144325831025 + 16873108920721 = 4810855^2 + 4107689^2 .

It is a super-2 number, since 2×40017434751746² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40017434751743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10004358687935 + ... + 10004358687938.

Almost surely, 2^{40017434751746} is an apocalyptic number.

40017434751746 is a deficient number, since it is larger than the sum of its proper divisors (20008717375876).

40017434751746 is a wasteful number, since it uses less digits than its factorization.

40017434751746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20008717375875.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 40017434751746 in words is "forty trillion, seventeen billion, four hundred thirty-four million, seven hundred fifty-one thousand, seven hundred forty-six".