1945679560 has 32 divisors (see below), whose sum is σ = 4775760000. Its totient is φ = 707519680.

The previous prime is 1945679507. The next prime is 1945679569. The reversal of 1945679560 is 659765491.

It is a junction number, because it is equal to n+sod(n) for n = 1945679498 and 1945679507.

It is not an unprimeable number, because it can be changed into a prime (1945679569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210560 + ... + 2211439.

It is an arithmetic number, because the mean of its divisors is an integer number (149242500).

Almost surely, 2^1945679560 is an apocalyptic number.

1945679560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945679560 is an abundant number, since it is smaller than the sum of its proper divisors (2830080440).

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

1945679560 is a wasteful number, since it uses less digits than its factorization.

1945679560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422021 (or 4422017 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 52.

The square root of 1945679560 is about 44109.8578551326. The cubic root of 1945679560 is about 1248.4096168700.

The spelling of 1945679560 in words is "one billion, nine hundred forty-five million, six hundred seventy-nine thousand, five hundred sixty".