247587920311 has 16 divisors (see below), whose sum is σ = 253508244480. Its totient is φ = 241726548960.

The previous prime is 247587920309. The next prime is 247587920341. The reversal of 247587920311 is 113029785742.

It is a cyclic number.

It is not a de Polignac number, because 247587920311 - 2¹ = 247587920309 is a prime.

It is a super-2 number, since 2×247587920311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247587920341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24736470 + ... + 24746476.

It is an arithmetic number, because the mean of its divisors is an integer number (15844265280).

Almost surely, 2^247587920311 is an apocalyptic number.

247587920311 is a deficient number, since it is larger than the sum of its proper divisors (5920324169).

247587920311 is a wasteful number, since it uses less digits than its factorization.

247587920311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 247587920311 in words is "two hundred forty-seven billion, five hundred eighty-seven million, nine hundred twenty thousand, three hundred eleven".