1961161350 has 48 divisors (see below), whose sum is σ = 4922309952. Its totient is φ = 516672160.

The previous prime is 1961161289. The next prime is 1961161351. The reversal of 1961161350 is 531611691.

1961161350 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961161351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66312 + ... + 91211.

It is an arithmetic number, because the mean of its divisors is an integer number (102548124).

Almost surely, 2^1961161350 is an apocalyptic number.

1961161350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1961161350 is an abundant number, since it is smaller than the sum of its proper divisors (2961148602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961161350 is a wasteful number, since it uses less digits than its factorization.

1961161350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157621 (or 157616 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1961161350 is about 44285.0014113131. The cubic root of 1961161350 is about 1251.7120753013.

The spelling of 1961161350 in words is "one billion, nine hundred sixty-one million, one hundred sixty-one thousand, three hundred fifty".