53687329450 has 12 divisors (see below), whose sum is σ = 99858432870. Its totient is φ = 21474931760.

The previous prime is 53687329439. The next prime is 53687329453. The reversal of 53687329450 is 5492378635.

It can be written as a sum of positive squares in 3 ways, for example, as 23805712681 + 29881616769 = 154291^2 + 172863^2 .

It is not an unprimeable number, because it can be changed into a prime (53687329453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 536873245 + ... + 536873344.

Almost surely, 2^53687329450 is an apocalyptic number.

53687329450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53687329450 is a deficient number, since it is larger than the sum of its proper divisors (46171103420).

53687329450 is a wasteful number, since it uses less digits than its factorization.

53687329450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073746601 (or 1073746596 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 53687329450 in words is "fifty-three billion, six hundred eighty-seven million, three hundred twenty-nine thousand, four hundred fifty".