1618071494 has 32 divisors (see below), whose sum is σ = 2688940800. Its totient is φ = 725404032.

The previous prime is 1618071479. The next prime is 1618071523. The reversal of 1618071494 is 4941708161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829232 + ... + 831180.

It is an arithmetic number, because the mean of its divisors is an integer number (84029400).

Almost surely, 2^1618071494 is an apocalyptic number.

1618071494 is a deficient number, since it is larger than the sum of its proper divisors (1070869306).

1618071494 is a wasteful number, since it uses less digits than its factorization.

1618071494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1618071494 is about 40225.2594025197. The cubic root of 1618071494 is about 1173.9940674379.

The spelling of 1618071494 in words is "one billion, six hundred eighteen million, seventy-one thousand, four hundred ninety-four".