1771049296640 has 72 divisors (see below), whose sum is σ = 4568540908848. Its totient is φ = 653925888000.

The previous prime is 1771049296607. The next prime is 1771049296717. The reversal of 1771049296640 is 466929401771.

It is a super-2 number, since 2×1771049296640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53199986 + ... + 53233265.

Almost surely, 2^{1771049296640} is an apocalyptic number.

1771049296640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1771049296640 is an abundant number, since it is smaller than the sum of its proper divisors (2797491612208).

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

1771049296640 is a wasteful number, since it uses less digits than its factorization.

1771049296640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106433285 (or 106433271 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 1771049296640 in words is "one trillion, seven hundred seventy-one billion, forty-nine million, two hundred ninety-six thousand, six hundred forty".