1964749061 has 32 divisors (see below), whose sum is σ = 2245677696. Its totient is φ = 1703520000.

The previous prime is 1964749051. The next prime is 1964749153. The reversal of 1964749061 is 1609474691.

It is a cyclic number.

It is not a de Polignac number, because 1964749061 - 2⁶ = 1964748997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1964748997 and 1964749015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964749021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591590 + ... + 3592136.

It is an arithmetic number, because the mean of its divisors is an integer number (70177428).

Almost surely, 2^1964749061 is an apocalyptic number.

1964749061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1964749061 is a deficient number, since it is larger than the sum of its proper divisors (280928635).

1964749061 is a wasteful number, since it uses less digits than its factorization.

1964749061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1964749061 is about 44325.4899690911. The cubic root of 1964749061 is about 1252.4748963565.

The spelling of 1964749061 in words is "one billion, nine hundred sixty-four million, seven hundred forty-nine thousand, sixty-one".