263427431377 has 16 divisors (see below), whose sum is σ = 290937878784. Its totient is φ = 236524266000.

The previous prime is 263427431347. The next prime is 263427431381. The reversal of 263427431377 is 773134724362.

It is not a de Polignac number, because 263427431377 - 2⁷ = 263427431249 is a prime.

It is a super-2 number, since 2×263427431377² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 263427431377.

It is not an unprimeable number, because it can be changed into a prime (263427431327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51502 + ... + 727672.

It is an arithmetic number, because the mean of its divisors is an integer number (18183617424).

Almost surely, 2^263427431377 is an apocalyptic number.

It is an amenable number.

263427431377 is a deficient number, since it is larger than the sum of its proper divisors (27510447407).

263427431377 is a wasteful number, since it uses less digits than its factorization.

263427431377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676620.

The product of its digits is 3556224, while the sum is 49.

The spelling of 263427431377 in words is "two hundred sixty-three billion, four hundred twenty-seven million, four hundred thirty-one thousand, three hundred seventy-seven".