1942562661 has 8 divisors (see below), whose sum is σ = 2789320800. Its totient is φ = 1195423152.

The previous prime is 1942562659. The next prime is 1942562693. The reversal of 1942562661 is 1662652491.

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

It is not a de Polignac number, because 1942562661 - 2¹ = 1942562659 is a prime.

It is a super-2 number, since 2×1942562661² = 7547099383822801842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942562161) by changing a digit.

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, 24904611 + ... + 24904688.

It is an arithmetic number, because the mean of its divisors is an integer number (348665100).

Almost surely, 2^1942562661 is an apocalyptic number.

It is an amenable number.

1942562661 is a deficient number, since it is larger than the sum of its proper divisors (846758139).

1942562661 is a wasteful number, since it uses less digits than its factorization.

1942562661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49809315.

The product of its digits is 155520, while the sum is 42.

The square root of 1942562661 is about 44074.5126008218. The cubic root of 1942562661 is about 1247.7426268806.

The spelling of 1942562661 in words is "one billion, nine hundred forty-two million, five hundred sixty-two thousand, six hundred sixty-one".