49291551747840 has 288 divisors, whose sum is σ = 162919995900480. Its totient is φ = 12685963558912.

The previous prime is 49291551747827. The next prime is 49291551747853. The reversal of 49291551747840 is 4874715519294.

It is an interprime number because it is at equal distance from previous prime (49291551747827) and next prime (49291551747853).

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, 275749372 + ... + 275928068.

It is an arithmetic number, because the mean of its divisors is an integer number (565694430210).

Almost surely, 2^{49291551747840} is an apocalyptic number.

49291551747840 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 49291551747840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81459997950240).

49291551747840 is an abundant number, since it is smaller than the sum of its proper divisors (113628444152640).

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

49291551747840 is a wasteful number, since it uses less digits than its factorization.

49291551747840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181227 (or 181213 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 49291551747840 in words is "forty-nine trillion, two hundred ninety-one billion, five hundred fifty-one million, seven hundred forty-seven thousand, eight hundred forty".