51611034103412 has 192 divisors, whose sum is σ = 108989398941696. Its totient is φ = 20922683512320.

The previous prime is 51611034103361. The next prime is 51611034103501. The reversal of 51611034103412 is 21430143011615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2649835418 + ... + 2649854894.

It is an arithmetic number, because the mean of its divisors is an integer number (567653119488).

Almost surely, 2^{51611034103412} 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 51611034103412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54494699470848).

51611034103412 is an abundant number, since it is smaller than the sum of its proper divisors (57378364838284).

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

51611034103412 is a wasteful number, since it uses less digits than its factorization.

51611034103412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20006 (or 20004 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 51611034103412 in words is "fifty-one trillion, six hundred eleven billion, thirty-four million, one hundred three thousand, four hundred twelve".