53365811642 has 64 divisors (see below), whose sum is σ = 96429553920. Its totient is φ = 21824140800.

The previous prime is 53365811593. The next prime is 53365811693. The reversal of 53365811642 is 24611856335.

It is a happy number.

It is a super-3 number, since 3×53365811642³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53365811593 and 53365811602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20038403 + ... + 20041065.

It is an arithmetic number, because the mean of its divisors is an integer number (1506711780).

Almost surely, 2^53365811642 is an apocalyptic number.

53365811642 is a deficient number, since it is larger than the sum of its proper divisors (43063742278).

53365811642 is a wasteful number, since it uses less digits than its factorization.

53365811642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439.

The product of its digits is 518400, while the sum is 44.

The spelling of 53365811642 in words is "fifty-three billion, three hundred sixty-five million, eight hundred eleven thousand, six hundred forty-two".