19706972754 has 32 divisors (see below), whose sum is σ = 45142263936. Its totient is φ = 5618344320.

The previous prime is 19706972749. The next prime is 19706972759. The reversal of 19706972754 is 45727960791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19706972749) and next prime (19706972759).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19706972694 and 19706972703.

It is not an unprimeable number, because it can be changed into a prime (19706972759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489547 + ... + 528270.

It is an arithmetic number, because the mean of its divisors is an integer number (1410695748).

Almost surely, 2^19706972754 is an apocalyptic number.

19706972754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19706972754 is an abundant number, since it is smaller than the sum of its proper divisors (25435291182).

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

19706972754 is a wasteful number, since it uses less digits than its factorization.

19706972754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018290.

The product of its (nonzero) digits is 6667920, while the sum is 57.

The spelling of 19706972754 in words is "nineteen billion, seven hundred six million, nine hundred seventy-two thousand, seven hundred fifty-four".