47490719640 has 576 divisors, whose sum is σ = 188479236960. Its totient is φ = 9487134720.

The previous prime is 47490719629. The next prime is 47490719641. The reversal of 47490719640 is 4691709474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47490719641) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 27593980 + ... + 27595700.

Almost surely, 2^47490719640 is an apocalyptic number.

47490719640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47490719640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94239618480).

47490719640 is an abundant number, since it is smaller than the sum of its proper divisors (140988517320).

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

47490719640 is a wasteful number, since it uses less digits than its factorization.

47490719640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 47490719640 in words is "forty-seven billion, four hundred ninety million, seven hundred nineteen thousand, six hundred forty".