27701921053 has 8 divisors (see below), whose sum is σ = 29431678680. Its totient is φ = 26023798080.

The previous prime is 27701921047. The next prime is 27701921077. The reversal of 27701921053 is 35012910772.

It can be written as a sum of positive squares in 4 ways, for example, as 18491104324 + 9210816729 = 135982^2 + 95973^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27701921053 - 2¹⁷ = 27701789981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27701921153) 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, 12907558 + ... + 12909703.

It is an arithmetic number, because the mean of its divisors is an integer number (3678959835).

Almost surely, 2^27701921053 is an apocalyptic number.

It is an amenable number.

27701921053 is a deficient number, since it is larger than the sum of its proper divisors (1729757627).

27701921053 is a wasteful number, since it uses less digits than its factorization.

27701921053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25817327.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 27701921053 in words is "twenty-seven billion, seven hundred one million, nine hundred twenty-one thousand, fifty-three".