49661951614938 has 512 divisors, whose sum is σ = 132003318988800. Its totient is φ = 13692859488000.

The previous prime is 49661951614931. The next prime is 49661951614943. The reversal of 49661951614938 is 83941615916694.

49661951614938 is a `hidden beast` number, since 4 + 9 + 6 + 6 + 1 + 9 + 516 + 14 + 93 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (49661951614931) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 12895856713 + ... + 12895860563.

It is an arithmetic number, because the mean of its divisors is an integer number (257818982400).

Almost surely, 2^{49661951614938} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49661951614938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66001659494400).

49661951614938 is an abundant number, since it is smaller than the sum of its proper divisors (82341367373862).

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

49661951614938 is a wasteful number, since it uses less digits than its factorization.

49661951614938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4369 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 72.

The spelling of 49661951614938 in words is "forty-nine trillion, six hundred sixty-one billion, nine hundred fifty-one million, six hundred fourteen thousand, nine hundred thirty-eight".