10195491648 has 56 divisors (see below), whose sum is σ = 27633533760. Its totient is φ = 3315604480.

The previous prime is 10195491643. The next prime is 10195491659. The reversal of 10195491648 is 84619459101.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 10195491597 and 10195491606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10195491643) 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, 639708 + ... + 655451.

It is an arithmetic number, because the mean of its divisors is an integer number (493455960).

Almost surely, 2^10195491648 is an apocalyptic number.

It is an amenable number.

10195491648 is an abundant number, since it is smaller than the sum of its proper divisors (17438042112).

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

10195491648 is a wasteful number, since it uses less digits than its factorization.

10195491648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295215 (or 1295205 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 10195491648 in words is "ten billion, one hundred ninety-five million, four hundred ninety-one thousand, six hundred forty-eight".