977472205249 has 4 divisors (see below), whose sum is σ = 977792796100. Its totient is φ = 977151614400.

The previous prime is 977472205247. The next prime is 977472205253. The reversal of 977472205249 is 942502274779.

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 85310726400 + 892161478849 = 292080^2 + 944543^2 .

It is a cyclic number.

It is not a de Polignac number, because 977472205249 - 2¹ = 977472205247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 977472205193 and 977472205202.

It is not an unprimeable number, because it can be changed into a prime (977472205247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160290852 + ... + 160296949.

It is an arithmetic number, because the mean of its divisors is an integer number (244448199025).

Almost surely, 2^977472205249 is an apocalyptic number.

It is an amenable number.

977472205249 is a deficient number, since it is larger than the sum of its proper divisors (320590851).

977472205249 is a wasteful number, since it uses less digits than its factorization.

977472205249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320590850.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 977472205249 in words is "nine hundred seventy-seven billion, four hundred seventy-two million, two hundred five thousand, two hundred forty-nine".