1642047467776 has 45 divisors (see below), whose sum is σ = 3289303668791. Its totient is φ = 818122589952.

The previous prime is 1642047467771. The next prime is 1642047467777. The reversal of 1642047467776 is 6777647402461.

The square root of 1642047467776 is 1281424.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642047467771) by changing a digit.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 5802287731 + ... + 5802288013.

Almost surely, 2^{1642047467776} is an apocalyptic number.

1642047467776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1642047467776 is the 1281424-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642047467776

1642047467776 is an abundant number, since it is smaller than the sum of its proper divisors (1647256201015).

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

1642047467776 is an frugal number, since it uses more digits than its factorization.

1642047467776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 61.

The spelling of 1642047467776 in words is "one trillion, six hundred forty-two billion, forty-seven million, four hundred sixty-seven thousand, seven hundred seventy-six".