1961752379 has 8 divisors (see below), whose sum is σ = 2024946000. Its totient is φ = 1899289600.

The previous prime is 1961752367. The next prime is 1961752421. The reversal of 1961752379 is 9732571691.

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 1961752379 - 2²⁸ = 1693316923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1961752339) 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, 177254 + ... + 187995.

It is an arithmetic number, because the mean of its divisors is an integer number (253118250).

Almost surely, 2^1961752379 is an apocalyptic number.

1961752379 is a deficient number, since it is larger than the sum of its proper divisors (63193621).

1961752379 is a wasteful number, since it uses less digits than its factorization.

1961752379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365421.

The product of its digits is 714420, while the sum is 50.

The square root of 1961752379 is about 44291.6739241135. The cubic root of 1961752379 is about 1251.8378041764.

The spelling of 1961752379 in words is "one billion, nine hundred sixty-one million, seven hundred fifty-two thousand, three hundred seventy-nine".