13903652977 has 4 divisors (see below), whose sum is σ = 13905164196. Its totient is φ = 13902141760.

The previous prime is 13903652947. The next prime is 13903652989. The reversal of 13903652977 is 77925630931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4921162801 + 8982490176 = 70151^2 + 94776^2 .

It is a cyclic number.

It is not a de Polignac number, because 13903652977 - 2¹⁵ = 13903620209 is a prime.

It is a super-3 number, since 3×13903652977³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13903652947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741724 + ... + 760237.

It is an arithmetic number, because the mean of its divisors is an integer number (3476291049).

Almost surely, 2^13903652977 is an apocalyptic number.

It is an amenable number.

13903652977 is a deficient number, since it is larger than the sum of its proper divisors (1511219).

13903652977 is an equidigital number, since it uses as much as digits as its factorization.

13903652977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511218.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The spelling of 13903652977 in words is "thirteen billion, nine hundred three million, six hundred fifty-two thousand, nine hundred seventy-seven".