1667892672 has 42 divisors (see below), whose sum is σ = 4780714848. Its totient is φ = 555964032.

The previous prime is 1667892671. The next prime is 1667892691. The reversal of 1667892672 is 2762987661.

It is a super-2 number, since 2×1667892672² = 5563731930622599168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667892671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1447248 + ... + 1448399.

It is an arithmetic number, because the mean of its divisors is an integer number (113826544).

Almost surely, 2^1667892672 is an apocalyptic number.

1667892672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1667892672 is an abundant number, since it is smaller than the sum of its proper divisors (3112822176).

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

1667892672 is a wasteful number, since it uses less digits than its factorization.

1667892672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895665 (or 2895652 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 1667892672 is about 40839.8417234935. The cubic root of 1667892672 is about 1185.9217482522.

The spelling of 1667892672 in words is "one billion, six hundred sixty-seven million, eight hundred ninety-two thousand, six hundred seventy-two".