1018536761949 has 16 divisors (see below), whose sum is σ = 1602122342400. Its totient is φ = 563246135280.

The previous prime is 1018536761939. The next prime is 1018536761951. The reversal of 1018536761949 is 9491676358101.

It is not a de Polignac number, because 1018536761949 - 2¹⁵ = 1018536729181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1018536761892 and 1018536761901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018536761939) 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, 782285649 + ... + 782286950.

It is an arithmetic number, because the mean of its divisors is an integer number (100132646400).

Almost surely, 2^{1018536761949} is an apocalyptic number.

It is an amenable number.

1018536761949 is a deficient number, since it is larger than the sum of its proper divisors (583585580451).

1018536761949 is a wasteful number, since it uses less digits than its factorization.

1018536761949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564572640.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 1018536761949 in words is "one trillion, eighteen billion, five hundred thirty-six million, seven hundred sixty-one thousand, nine hundred forty-nine".