21077036053 has 16 divisors (see below), whose sum is σ = 22359413440. Its totient is φ = 19812470400.

The previous prime is 21077036023. The next prime is 21077036083. The reversal of 21077036053 is 35063077012.

It is an interprime number because it is at equal distance from previous prime (21077036023) and next prime (21077036083).

It is not a de Polignac number, because 21077036053 - 2²¹ = 21074938901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21077036003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564918 + ... + 1578328.

It is an arithmetic number, because the mean of its divisors is an integer number (1397463340).

Almost surely, 2^21077036053 is an apocalyptic number.

It is an amenable number.

21077036053 is a deficient number, since it is larger than the sum of its proper divisors (1282377387).

21077036053 is a wasteful number, since it uses less digits than its factorization.

21077036053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14068.

The product of its (nonzero) digits is 26460, while the sum is 34.

The spelling of 21077036053 in words is "twenty-one billion, seventy-seven million, thirty-six thousand, fifty-three".