5751662187978 has 192 divisors, whose sum is σ = 14627592645120. Its totient is φ = 1599553806336.

The previous prime is 5751662187959. The next prime is 5751662188001. The reversal of 5751662187978 is 8797812661575.

5751662187978 is a `hidden beast` number, since 5 + 7 + 516 + 6 + 2 + 18 + 7 + 97 + 8 = 666.

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, 320292976 + ... + 320310932.

It is an arithmetic number, because the mean of its divisors is an integer number (76185378360).

Almost surely, 2^{5751662187978} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5751662187978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7313796322560).

5751662187978 is an abundant number, since it is smaller than the sum of its proper divisors (8875930457142).

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

5751662187978 is a wasteful number, since it uses less digits than its factorization.

5751662187978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501 (or 18498 counting only the distinct ones).

The product of its digits is 355622400, while the sum is 72.

The spelling of 5751662187978 in words is "five trillion, seven hundred fifty-one billion, six hundred sixty-two million, one hundred eighty-seven thousand, nine hundred seventy-eight".