3551942619391 has 24 divisors (see below), whose sum is σ = 3941566920000. Its totient is φ = 3195701570880.

The previous prime is 3551942619361. The next prime is 3551942619409. The reversal of 3551942619391 is 1939162491553.

3551942619391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3551942619391 - 2¹¹ = 3551942617343 is a prime.

It is a super-3 number, since 3×3551942619391³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551942619361) 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, 2142391 + ... + 3419608.

It is an arithmetic number, because the mean of its divisors is an integer number (164231955000).

Almost surely, 2^{3551942619391} is an apocalyptic number.

3551942619391 is a deficient number, since it is larger than the sum of its proper divisors (389624300609).

3551942619391 is a wasteful number, since it uses less digits than its factorization.

3551942619391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562127 (or 5562108 counting only the distinct ones).

The product of its digits is 7873200, while the sum is 58.

The spelling of 3551942619391 in words is "three trillion, five hundred fifty-one billion, nine hundred forty-two million, six hundred nineteen thousand, three hundred ninety-one".