1961735810740 has 24 divisors (see below), whose sum is σ = 4127738829480. Its totient is φ = 783152681088.

The previous prime is 1961735810717. The next prime is 1961735810773. The reversal of 1961735810740 is 470185371691.

It can be written as a sum of positive squares in 4 ways, for example, as 521130947236 + 1440604863504 = 721894^2 + 1200252^2 .

It is a super-2 number, since 2×1961735810740² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96342267 + ... + 96362626.

It is an arithmetic number, because the mean of its divisors is an integer number (171989117895).

Almost surely, 2^{1961735810740} is an apocalyptic number.

1961735810740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1961735810740 is an abundant number, since it is smaller than the sum of its proper divisors (2166003018740).

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

1961735810740 is a wasteful number, since it uses less digits than its factorization.

1961735810740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192705411 (or 192705409 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 1961735810740 in words is "one trillion, nine hundred sixty-one billion, seven hundred thirty-five million, eight hundred ten thousand, seven hundred forty".