20465087378 has 32 divisors (see below), whose sum is σ = 32765990400. Its totient is φ = 9558781056.

The previous prime is 20465087347. The next prime is 20465087387. The reversal of 20465087378 is 87378056402.

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, 1253375 + ... + 1269597.

It is an arithmetic number, because the mean of its divisors is an integer number (1023937200).

Almost surely, 2^20465087378 is an apocalyptic number.

20465087378 is a deficient number, since it is larger than the sum of its proper divisors (12300903022).

20465087378 is a wasteful number, since it uses less digits than its factorization.

20465087378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16706.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 20465087378 in words is "twenty billion, four hundred sixty-five million, eighty-seven thousand, three hundred seventy-eight".