40137522842444 has 12 divisors (see below), whose sum is σ = 70245206406984. Its totient is φ = 20067463869024.

The previous prime is 40137522842419. The next prime is 40137522842449. The reversal of 40137522842444 is 44424822573104.

It is a super-2 number, since 2×40137522842444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40137522842392 and 40137522842401.

It is not an unprimeable number, because it can be changed into a prime (40137522842449) 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, 324318449 + ... + 324442184.

It is an arithmetic number, because the mean of its divisors is an integer number (5853767200582).

Almost surely, 2^{40137522842444} is an apocalyptic number.

It is an amenable number.

40137522842444 is a deficient number, since it is larger than the sum of its proper divisors (30107683564540).

40137522842444 is a wasteful number, since it uses less digits than its factorization.

40137522842444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648776104 (or 648776102 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 50.

The spelling of 40137522842444 in words is "forty trillion, one hundred thirty-seven billion, five hundred twenty-two million, eight hundred forty-two thousand, four hundred forty-four".