263434105542 has 16 divisors (see below), whose sum is σ = 527015794752. Its totient is φ = 87786771240.

The previous prime is 263434105483. The next prime is 263434105547. The reversal of 263434105542 is 245501434362.

It is a super-2 number, since 2×263434105542² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 263434105542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263434105547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6126108 + ... + 6168959.

It is an arithmetic number, because the mean of its divisors is an integer number (32938487172).

Almost surely, 2^263434105542 is an apocalyptic number.

263434105542 is an abundant number, since it is smaller than the sum of its proper divisors (263581689210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263434105542 is a wasteful number, since it uses less digits than its factorization.

263434105542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12298643.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 263434105542 in words is "two hundred sixty-three billion, four hundred thirty-four million, one hundred five thousand, five hundred forty-two".