1961677748 has 12 divisors (see below), whose sum is σ = 3434598720. Its totient is φ = 980363832.

The previous prime is 1961677741. The next prime is 1961677807. The reversal of 1961677748 is 8477761691.

It is a junction number, because it is equal to n+sod(n) for n = 1961677693 and 1961677702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961677741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109388 + ... + 126051.

It is an arithmetic number, because the mean of its divisors is an integer number (286216560).

Almost surely, 2^1961677748 is an apocalyptic number.

It is an amenable number.

1961677748 is a deficient number, since it is larger than the sum of its proper divisors (1472920972).

1961677748 is a wasteful number, since it uses less digits than its factorization.

1961677748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237526 (or 237524 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 56.

The square root of 1961677748 is about 44290.8314214127. The cubic root of 1961677748 is about 1251.8219294084.

The spelling of 1961677748 in words is "one billion, nine hundred sixty-one million, six hundred seventy-seven thousand, seven hundred forty-eight".