52634321781 has 8 divisors (see below), whose sum is σ = 70307396064. Its totient is φ = 35025397680.

The previous prime is 52634321767. The next prime is 52634321837. The reversal of 52634321781 is 18712343625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52634321781 - 2¹⁰ = 52634320757 is a prime.

It is a super-2 number, since 2×52634321781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52634321731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16035630 + ... + 16038911.

It is an arithmetic number, because the mean of its divisors is an integer number (8788424508).

Almost surely, 2^52634321781 is an apocalyptic number.

It is an amenable number.

52634321781 is a deficient number, since it is larger than the sum of its proper divisors (17673074283).

52634321781 is a wasteful number, since it uses less digits than its factorization.

52634321781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32075091.

The product of its digits is 241920, while the sum is 42.

The spelling of 52634321781 in words is "fifty-two billion, six hundred thirty-four million, three hundred twenty-one thousand, seven hundred eighty-one".