611591938571712 has 896 divisors, whose sum is σ = 2057829571952640. Its totient is φ = 156468689879040.

The previous prime is 611591938571701. The next prime is 611591938571723. The reversal of 611591938571712 is 217175839195116.

It is an interprime number because it is at equal distance from previous prime (611591938571701) and next prime (611591938571723).

It is a super-2 number, since 2×611591938571712² (a number of 30 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 127 ways as a sum of consecutive naturals, for example, 4508169162 + ... + 4508304822.

Almost surely, 2^{611591938571712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611591938571712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028914785976320).

611591938571712 is an abundant number, since it is smaller than the sum of its proper divisors (1446237633380928).

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

611591938571712 is a wasteful number, since it uses less digits than its factorization.

611591938571712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135889 (or 135879 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 66.

The spelling of 611591938571712 in words is "six hundred eleven trillion, five hundred ninety-one billion, nine hundred thirty-eight million, five hundred seventy-one thousand, seven hundred twelve".