51061356340412 has 24 divisors (see below), whose sum is σ = 99858350984112. Its totient is φ = 22643617001600.

The previous prime is 51061356340411. The next prime is 51061356340417. The reversal of 51061356340412 is 21404365316015.

It is a super-2 number, since 2×51061356340412² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 51061356340412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061356340411) 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, 14152258823 + ... + 14152262430.

It is an arithmetic number, because the mean of its divisors is an integer number (4160764624338).

Almost surely, 2^{51061356340412} is an apocalyptic number.

It is an amenable number.

51061356340412 is a deficient number, since it is larger than the sum of its proper divisors (48796994643700).

51061356340412 is a wasteful number, since it uses less digits than its factorization.

51061356340412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28304521309 (or 28304521307 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 51061356340412 in words is "fifty-one trillion, sixty-one billion, three hundred fifty-six million, three hundred forty thousand, four hundred twelve".