47105157440 has 112 divisors (see below), whose sum is σ = 122810649984. Its totient is φ = 17066956800.

The previous prime is 47105157433. The next prime is 47105157457. The reversal of 47105157440 is 4475150174.

It is a junction number, because it is equal to n+sod(n) for n = 47105157394 and 47105157403.

It is a congruent number.

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, 950885 + ... + 999195.

Almost surely, 2^47105157440 is an apocalyptic number.

47105157440 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 47105157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61405324992).

47105157440 is an abundant number, since it is smaller than the sum of its proper divisors (75705492544).

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

47105157440 is a wasteful number, since it uses less digits than its factorization.

47105157440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48616 (or 48606 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The spelling of 47105157440 in words is "forty-seven billion, one hundred five million, one hundred fifty-seven thousand, four hundred forty".