1953717642 has 24 divisors (see below), whose sum is σ = 4331499744. Its totient is φ = 636093864.

The previous prime is 1953717631. The next prime is 1953717659. The reversal of 1953717642 is 2467173591.

1953717642 is a `hidden beast` number, since 1 + 9 + 537 + 1 + 76 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1261318 + ... + 1262865.

It is an arithmetic number, because the mean of its divisors is an integer number (180479156).

Almost surely, 2^1953717642 is an apocalyptic number.

1953717642 is an abundant number, since it is smaller than the sum of its proper divisors (2377782102).

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

1953717642 is a wasteful number, since it uses less digits than its factorization.

1953717642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524234 (or 2524231 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 1953717642 is about 44200.8782944412. The cubic root of 1953717642 is about 1250.1264175078.

The spelling of 1953717642 in words is "one billion, nine hundred fifty-three million, seven hundred seventeen thousand, six hundred forty-two".