19742062501 has 16 divisors (see below), whose sum is σ = 23082564096. Its totient is φ = 16532868096.

The previous prime is 19742062471. The next prime is 19742062531. The reversal of 19742062501 is 10526024791.

It is an interprime number because it is at equal distance from previous prime (19742062471) and next prime (19742062531).

It is a cyclic number.

It is not a de Polignac number, because 19742062501 - 2¹⁵ = 19742029733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19742062531) 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, 137835 + ... + 241831.

It is an arithmetic number, because the mean of its divisors is an integer number (1442660256).

Almost surely, 2^19742062501 is an apocalyptic number.

It is an amenable number.

19742062501 is a deficient number, since it is larger than the sum of its proper divisors (3340501595).

19742062501 is a wasteful number, since it uses less digits than its factorization.

19742062501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104628.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 19742062501 in words is "nineteen billion, seven hundred forty-two million, sixty-two thousand, five hundred one".