740544537501261 has 12 divisors (see below), whose sum is σ = 1069710408167388. Its totient is φ = 493680220591104.

The previous prime is 740544537501239. The next prime is 740544537501323. The reversal of 740544537501261 is 162105735445047.

740544537501261 is a `hidden beast` number, since 7 + 4 + 0 + 5 + 4 + 4 + 5 + 375 + 0 + 1 + 261 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 381403909089225 + 359140628412036 = 19529565^2 + 18951006^2 .

It is not a de Polignac number, because 740544537501261 - 2¹⁰ = 740544537500237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 740544537501198 and 740544537501207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740544537501761) 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 11 ways as a sum of consecutive naturals, for example, 1344521290 + ... + 1345071963.

It is an arithmetic number, because the mean of its divisors is an integer number (89142534013949).

Almost surely, 2^{740544537501261} is an apocalyptic number.

It is an amenable number.

740544537501261 is a deficient number, since it is larger than the sum of its proper divisors (329165870666127).

740544537501261 is a wasteful number, since it uses less digits than its factorization.

740544537501261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689623852 (or 2689623849 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 54.

The spelling of 740544537501261 in words is "seven hundred forty trillion, five hundred forty-four billion, five hundred thirty-seven million, five hundred one thousand, two hundred sixty-one".