1946994537 has 8 divisors (see below), whose sum is σ = 2609171136. Its totient is φ = 1291407152.

The previous prime is 1946994521. The next prime is 1946994557. The reversal of 1946994537 is 7354996491.

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

It is a cyclic number.

It is not a de Polignac number, because 1946994537 - 2⁴ = 1946994521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1946994557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646613 + ... + 1647794.

It is an arithmetic number, because the mean of its divisors is an integer number (326146392).

Almost surely, 2^1946994537 is an apocalyptic number.

It is an amenable number.

1946994537 is a deficient number, since it is larger than the sum of its proper divisors (662176599).

1946994537 is a wasteful number, since it uses less digits than its factorization.

1946994537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294607.

The product of its digits is 7348320, while the sum is 57.

The square root of 1946994537 is about 44124.7610418459. The cubic root of 1946994537 is about 1248.6907971624.

The spelling of 1946994537 in words is "one billion, nine hundred forty-six million, nine hundred ninety-four thousand, five hundred thirty-seven".