1772408641018 has 8 divisors (see below), whose sum is σ = 2664958101120. Its totient is φ = 884089273980.

The previous prime is 1772408641013. The next prime is 1772408641019. The reversal of 1772408641018 is 8101468042771.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1772408641013) 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, 1057522218 + ... + 1057523893.

It is an arithmetic number, because the mean of its divisors is an integer number (333119762640).

Almost surely, 2^{1772408641018} is an apocalyptic number.

1772408641018 is a deficient number, since it is larger than the sum of its proper divisors (892549460102).

1772408641018 is a wasteful number, since it uses less digits than its factorization.

1772408641018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115046532.

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 1772408641018 in words is "one trillion, seven hundred seventy-two billion, four hundred eight million, six hundred forty-one thousand, eighteen".