1538611662 has 48 divisors (see below), whose sum is σ = 3638351952. Its totient is φ = 432391680.

The previous prime is 1538611661. The next prime is 1538611667. The reversal of 1538611662 is 2661168351.

It is a self number, because there is not a number n which added to its sum of digits gives 1538611662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538611661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24963 + ... + 60830.

It is an arithmetic number, because the mean of its divisors is an integer number (75798999).

Almost surely, 2^1538611662 is an apocalyptic number.

1538611662 is an abundant number, since it is smaller than the sum of its proper divisors (2099740290).

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

1538611662 is a wasteful number, since it uses less digits than its factorization.

1538611662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85873 (or 85866 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1538611662 is about 39225.1406880842. The cubic root of 1538611662 is about 1154.4532214523.

The spelling of 1538611662 in words is "one billion, five hundred thirty-eight million, six hundred eleven thousand, six hundred sixty-two".