261054103783 has 16 divisors (see below), whose sum is σ = 292613836032. Its totient is φ = 230833944000.

The previous prime is 261054103781. The next prime is 261054103829. The reversal of 261054103783 is 387301450162.

It is not a de Polignac number, because 261054103783 - 2¹ = 261054103781 is a prime.

It is a super-2 number, since 2×261054103783² (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 (261054103781) 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, 725091 + ... + 1023652.

It is an arithmetic number, because the mean of its divisors is an integer number (18288364752).

Almost surely, 2^261054103783 is an apocalyptic number.

261054103783 is a deficient number, since it is larger than the sum of its proper divisors (31559732249).

261054103783 is a wasteful number, since it uses less digits than its factorization.

261054103783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749126.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 261054103783 in words is "two hundred sixty-one billion, fifty-four million, one hundred three thousand, seven hundred eighty-three".