47902399440 has 160 divisors (see below), whose sum is σ = 170226057216. Its totient is φ = 10915914240.

The previous prime is 47902399411. The next prime is 47902399453. The reversal of 47902399440 is 4499320974.

47902399440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×47902399440³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513009 + ... + 599151.

Almost surely, 2^47902399440 is an apocalyptic number.

47902399440 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 47902399440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85113028608).

47902399440 is an abundant number, since it is smaller than the sum of its proper divisors (122323657776).

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

47902399440 is a wasteful number, since it uses less digits than its factorization.

47902399440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86497 (or 86491 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 47902399440 in words is "forty-seven billion, nine hundred two million, three hundred ninety-nine thousand, four hundred forty".