6261881863972 has 36 divisors (see below), whose sum is σ = 12748730063580. Its totient is φ = 2683384140864.

The previous prime is 6261881863957. The next prime is 6261881863997. The reversal of 6261881863972 is 2793681881626.

It can be written as a sum of positive squares in 2 ways, for example, as 5696699674176 + 565182189796 = 2386776^2 + 751786^2 .

It is a super-2 number, since 2×6261881863972² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6261881863898 and 6261881863907.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228318 + ... + 3546250.

It is an arithmetic number, because the mean of its divisors is an integer number (354131390655).

Almost surely, 2^{6261881863972} is an apocalyptic number.

It is an amenable number.

6261881863972 is an abundant number, since it is smaller than the sum of its proper divisors (6486848199608).

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

6261881863972 is a wasteful number, since it uses less digits than its factorization.

6261881863972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327580 (or 3327571 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 67.

The spelling of 6261881863972 in words is "six trillion, two hundred sixty-one billion, eight hundred eighty-one million, eight hundred sixty-three thousand, nine hundred seventy-two".