265086054487780 has 24 divisors (see below), whose sum is σ = 585979699394880. Its totient is φ = 100453662753120.

The previous prime is 265086054487763. The next prime is 265086054487789. The reversal of 265086054487780 is 87784450680562.

It is not an unprimeable number, because it can be changed into a prime (265086054487789) 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, 348797439736 + ... + 348797440495.

It is an arithmetic number, because the mean of its divisors is an integer number (24415820808120).

Almost surely, 2^{265086054487780} is an apocalyptic number.

265086054487780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265086054487780 is an abundant number, since it is smaller than the sum of its proper divisors (320893644907100).

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

265086054487780 is a wasteful number, since it uses less digits than its factorization.

265086054487780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697594880259 (or 697594880257 counting only the distinct ones).

The product of its (nonzero) digits is 722534400, while the sum is 70.

The spelling of 265086054487780 in words is "two hundred sixty-five trillion, eighty-six billion, fifty-four million, four hundred eighty-seven thousand, seven hundred eighty".