1950071689840 has 20 divisors (see below), whose sum is σ = 4533916679064. Its totient is φ = 780028675904.

The previous prime is 1950071689757. The next prime is 1950071689877. The reversal of 1950071689840 is 489861700591.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×1950071689840³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12187947982 + ... + 12187948141.

Almost surely, 2^{1950071689840} is an apocalyptic number.

1950071689840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1950071689840 is an abundant number, since it is smaller than the sum of its proper divisors (2583844989224).

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

1950071689840 is a wasteful number, since it uses less digits than its factorization.

1950071689840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24375896136 (or 24375896130 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 1950071689840 in words is "one trillion, nine hundred fifty billion, seventy-one million, six hundred eighty-nine thousand, eight hundred forty".