47919696540 has 24 divisors (see below), whose sum is σ = 134175150480. Its totient is φ = 12778585728.

The previous prime is 47919696499. The next prime is 47919696551. The reversal of 47919696540 is 4569691974.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 798661609 = 47919696540 / (4 + 7 + 9 + 1 + 9 + 6 + 9 + 6 + 5 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399330745 + ... + 399330864.

It is an arithmetic number, because the mean of its divisors is an integer number (5590631270).

Almost surely, 2^47919696540 is an apocalyptic number.

It is an amenable number.

47919696540 is an abundant number, since it is smaller than the sum of its proper divisors (86255453940).

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

47919696540 is a wasteful number, since it uses less digits than its factorization.

47919696540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798661621 (or 798661619 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 47919696540 in words is "forty-seven billion, nine hundred nineteen million, six hundred ninety-six thousand, five hundred forty".