1962111797 has 4 divisors (see below), whose sum is σ = 2077530156. Its totient is φ = 1846693440.

The previous prime is 1962111793. The next prime is 1962111803. The reversal of 1962111797 is 7971112691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1221782116 + 740329681 = 34954^2 + 27209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1962111797 - 2² = 1962111793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962111793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57709154 + ... + 57709187.

It is an arithmetic number, because the mean of its divisors is an integer number (519382539).

Almost surely, 2^1962111797 is an apocalyptic number.

1962111797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1962111797 is a deficient number, since it is larger than the sum of its proper divisors (115418359).

1962111797 is a wasteful number, since it uses less digits than its factorization.

1962111797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115418358.

The product of its digits is 47628, while the sum is 44.

The square root of 1962111797 is about 44295.7311374358. The cubic root of 1962111797 is about 1251.9142503800.

The spelling of 1962111797 in words is "one billion, nine hundred sixty-two million, one hundred eleven thousand, seven hundred ninety-seven".