19148654040 has 64 divisors (see below), whose sum is σ = 57658037760. Its totient is φ = 5087456640.

The previous prime is 19148654029. The next prime is 19148654047. The reversal of 19148654040 is 4045684191.

It is a junction number, because it is equal to n+sod(n) for n = 19148653983 and 19148654001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19148654047) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 261894 + ... + 326933.

It is an arithmetic number, because the mean of its divisors is an integer number (900906840).

Almost surely, 2^19148654040 is an apocalyptic number.

19148654040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19148654040 is an abundant number, since it is smaller than the sum of its proper divisors (38509383720).

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

19148654040 is a wasteful number, since it uses less digits than its factorization.

19148654040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589112 (or 589108 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 19148654040 in words is "nineteen billion, one hundred forty-eight million, six hundred fifty-four thousand, forty".