42444051396690 has 16 divisors (see below), whose sum is σ = 101865723352128. Its totient is φ = 11318413705776.

The previous prime is 42444051396647. The next prime is 42444051396707. The reversal of 42444051396690 is 9669315044424.

It is a super-2 number, since 2×42444051396690² (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 42444051396690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707400856582 + ... + 707400856641.

It is an arithmetic number, because the mean of its divisors is an integer number (6366607709508).

Almost surely, 2^{42444051396690} is an apocalyptic number.

42444051396690 is an abundant number, since it is smaller than the sum of its proper divisors (59421671955438).

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

42444051396690 is a wasteful number, since it uses less digits than its factorization.

42444051396690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414801713233.

The product of its (nonzero) digits is 22394880, while the sum is 57.

The spelling of 42444051396690 in words is "forty-two trillion, four hundred forty-four billion, fifty-one million, three hundred ninety-six thousand, six hundred ninety".