19464777970 has 32 divisors (see below), whose sum is σ = 38274477696. Its totient is φ = 7068336000.

The previous prime is 19464777911. The next prime is 19464778001. The reversal of 19464777970 is 7977746491.

It is a junction number, because it is equal to n+sod(n) for n = 19464777899 and 19464777908.

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, 41731 + ... + 201670.

It is an arithmetic number, because the mean of its divisors is an integer number (1196077428).

Almost surely, 2^19464777970 is an apocalyptic number.

19464777970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19464777970 is a deficient number, since it is larger than the sum of its proper divisors (18809699726).

19464777970 is a wasteful number, since it uses less digits than its factorization.

19464777970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244146.

The product of its (nonzero) digits is 18670176, while the sum is 61.

The spelling of 19464777970 in words is "nineteen billion, four hundred sixty-four million, seven hundred seventy-seven thousand, nine hundred seventy".