1868152446 has 12 divisors (see below), whose sum is σ = 4047663672. Its totient is φ = 622717476.

The previous prime is 1868152439. The next prime is 1868152469. The reversal of 1868152446 is 6442518681.

It is a happy number.

1868152446 is a `hidden beast` number, since 1 + 8 + 6 + 81 + 524 + 46 = 666.

It is a super-2 number, since 2×1868152446² = 6979987122991565832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51893106 + ... + 51893141.

It is an arithmetic number, because the mean of its divisors is an integer number (337305306).

Almost surely, 2^1868152446 is an apocalyptic number.

1868152446 is an abundant number, since it is smaller than the sum of its proper divisors (2179511226).

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

1868152446 is a wasteful number, since it uses less digits than its factorization.

1868152446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103786255 (or 103786252 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1868152446 is about 43222.1291238643. The cubic root of 1868152446 is about 1231.6030931590.

The spelling of 1868152446 in words is "one billion, eight hundred sixty-eight million, one hundred fifty-two thousand, four hundred forty-six".