40451516221844 has 48 divisors (see below), whose sum is σ = 89481108678528. Its totient is φ = 15570289577088.

The previous prime is 40451516221777. The next prime is 40451516221861. The reversal of 40451516221844 is 44812261515404.

It is a super-2 number, since 2×40451516221844² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501750574 + ... + 1501777509.

It is an arithmetic number, because the mean of its divisors is an integer number (1864189764136).

Almost surely, 2^{40451516221844} is an apocalyptic number.

It is an amenable number.

40451516221844 is an abundant number, since it is smaller than the sum of its proper divisors (49029592456684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40451516221844 is a wasteful number, since it uses less digits than its factorization.

40451516221844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003528144 (or 3003528142 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 47.

The spelling of 40451516221844 in words is "forty trillion, four hundred fifty-one billion, five hundred sixteen million, two hundred twenty-one thousand, eight hundred forty-four".