49991020467880 has 256 divisors, whose sum is σ = 118266517923840. Its totient is φ = 18994441420800.

The previous prime is 49991020467877. The next prime is 49991020467907. The reversal of 49991020467880 is 8876402019994.

It is a super-2 number, since 2×49991020467880² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19279219864 + ... + 19279222456.

It is an arithmetic number, because the mean of its divisors is an integer number (461978585640).

Almost surely, 2^{49991020467880} is an apocalyptic number.

49991020467880 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 49991020467880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59133258961920).

49991020467880 is an abundant number, since it is smaller than the sum of its proper divisors (68275497455960).

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

49991020467880 is a wasteful number, since it uses less digits than its factorization.

49991020467880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652 (or 3648 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 67.

The spelling of 49991020467880 in words is "forty-nine trillion, nine hundred ninety-one billion, twenty million, four hundred sixty-seven thousand, eight hundred eighty".