53147321694 has 48 divisors (see below), whose sum is σ = 119467176192. Its totient is φ = 17708395608.

The previous prime is 53147321677. The next prime is 53147321707. The reversal of 53147321694 is 49612374135.

53147321694 is a `hidden beast` number, since 5 + 314 + 7 + 321 + 6 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1214397 + ... + 1257399.

It is an arithmetic number, because the mean of its divisors is an integer number (2488899504).

Almost surely, 2^53147321694 is an apocalyptic number.

53147321694 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

53147321694 is an abundant number, since it is smaller than the sum of its proper divisors (66319854498).

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

53147321694 is a wasteful number, since it uses less digits than its factorization.

53147321694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45563 (or 45551 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 53147321694 in words is "fifty-three billion, one hundred forty-seven million, three hundred twenty-one thousand, six hundred ninety-four".