1861466522 has 8 divisors (see below), whose sum is σ = 2867664756. Its totient is φ = 905578272.

The previous prime is 1861466513. The next prime is 1861466549. The reversal of 1861466522 is 2256641681.

It can be written as a sum of positive squares in 2 ways, for example, as 1842899041 + 18567481 = 42929^2 + 4309^2 .

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

It is a super-2 number, since 2×1861466522² = 6930115225053552968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1861466522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12577403 + ... + 12577550.

Almost surely, 2^1861466522 is an apocalyptic number.

1861466522 is a deficient number, since it is larger than the sum of its proper divisors (1006198234).

1861466522 is a wasteful number, since it uses less digits than its factorization.

1861466522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25154992.

The product of its digits is 138240, while the sum is 41.

The square root of 1861466522 is about 43144.7160380040. The cubic root of 1861466522 is about 1230.1320769445.

The spelling of 1861466522 in words is "one billion, eight hundred sixty-one million, four hundred sixty-six thousand, five hundred twenty-two".