51654062880 has 576 divisors, whose sum is σ = 212913163008. Its totient is φ = 11580641280.

The previous prime is 51654062723. The next prime is 51654062897. The reversal of 51654062880 is 8826045615.

51654062880 is a `hidden beast` number, since 5 + 1 + 6 + 540 + 6 + 28 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14422690 + ... + 14426270.

It is an arithmetic number, because the mean of its divisors is an integer number (369640908).

Almost surely, 2^51654062880 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 51654062880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106456581504).

51654062880 is an abundant number, since it is smaller than the sum of its proper divisors (161259100128).

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

51654062880 is a wasteful number, since it uses less digits than its factorization.

51654062880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 51654062880 in words is "fifty-one billion, six hundred fifty-four million, sixty-two thousand, eight hundred eighty".