53751781480 has 16 divisors (see below), whose sum is σ = 120941508420. Its totient is φ = 21500712576.

The previous prime is 53751781441. The next prime is 53751781493. The reversal of 53751781480 is 8418715735.

It can be written as a sum of positive squares in 2 ways, for example, as 47516152324 + 6235629156 = 217982^2 + 78966^2 .

It is a super-3 number, since 3×53751781480³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671897229 + ... + 671897308.

Almost surely, 2^53751781480 is an apocalyptic number.

It is an amenable number.

53751781480 is an abundant number, since it is smaller than the sum of its proper divisors (67189726940).

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

53751781480 is a wasteful number, since it uses less digits than its factorization.

53751781480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343794548 (or 1343794544 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 53751781480 in words is "fifty-three billion, seven hundred fifty-one million, seven hundred eighty-one thousand, four hundred eighty".