1541409924649 has 6 divisors (see below), whose sum is σ = 1793068687914. Its totient is φ = 1321208506800.

The previous prime is 1541409924601. The next prime is 1541409924661. The reversal of 1541409924649 is 9464299041451.

It can be written as a sum of positive squares in only one way, i.e., 1536161936400 + 5247988249 = 1239420^2 + 72443^2 .

It is not a de Polignac number, because 1541409924649 - 2¹⁹ = 1541409400361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1541409924593 and 1541409924602.

It is not an unprimeable number, because it can be changed into a prime (1541409922649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15728672652 + ... + 15728672749.

It is an arithmetic number, because the mean of its divisors is an integer number (298844781319).

Almost surely, 2^{1541409924649} is an apocalyptic number.

It is an amenable number.

1541409924649 is a deficient number, since it is larger than the sum of its proper divisors (251658763265).

1541409924649 is an equidigital number, since it uses as much as digits as its factorization.

1541409924649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31457345415 (or 31457345408 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 1541409924649 in words is "one trillion, five hundred forty-one billion, four hundred nine million, nine hundred twenty-four thousand, six hundred forty-nine".