2071187924581 has 8 divisors (see below), whose sum is σ = 2091406728320. Its totient is φ = 2050971239952.

The previous prime is 2071187924557. The next prime is 2071187924633. The reversal of 2071187924581 is 1854297811702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2071187924581 - 2³³ = 2062597989989 is a prime.

It is a super-2 number, since 2×2071187924581² (a number of 25 digits) contains 22 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 (2071187924381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471240 + ... + 2511358.

It is an arithmetic number, because the mean of its divisors is an integer number (261425841040).

Almost surely, 2^{2071187924581} is an apocalyptic number.

It is an amenable number.

2071187924581 is a deficient number, since it is larger than the sum of its proper divisors (20218803739).

2071187924581 is a wasteful number, since it uses less digits than its factorization.

2071187924581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059555.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The spelling of 2071187924581 in words is "two trillion, seventy-one billion, one hundred eighty-seven million, nine hundred twenty-four thousand, five hundred eighty-one".