40142736431650 has 12 divisors (see below), whose sum is σ = 74665489762962. Its totient is φ = 16057094572640.

The previous prime is 40142736431543. The next prime is 40142736431659. The reversal of 40142736431650 is 5613463724104.

It can be written as a sum of positive squares in 3 ways, for example, as 38601878467681 + 1540857963969 = 6213041^2 + 1241313^2 .

It is a super-2 number, since 2×40142736431650² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40142736431650.

It is not an unprimeable number, because it can be changed into a prime (40142736431659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401427364267 + ... + 401427364366.

Almost surely, 2^{40142736431650} is an apocalyptic number.

40142736431650 is a deficient number, since it is larger than the sum of its proper divisors (34522753331312).

40142736431650 is a wasteful number, since it uses less digits than its factorization.

40142736431650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802854728645 (or 802854728640 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 40142736431650 in words is "forty trillion, one hundred forty-two billion, seven hundred thirty-six million, four hundred thirty-one thousand, six hundred fifty".