49151380890 has 32 divisors (see below), whose sum is σ = 117973376640. Its totient is φ = 13105916864.

The previous prime is 49151380871. The next prime is 49151380897. The reversal of 49151380890 is 9808315194.

It is not an unprimeable number, because it can be changed into a prime (49151380897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324091 + ... + 450929.

It is an arithmetic number, because the mean of its divisors is an integer number (3686668020).

Almost surely, 2^49151380890 is an apocalyptic number.

49151380890 is an abundant number, since it is smaller than the sum of its proper divisors (68821995750).

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

49151380890 is a wasteful number, since it uses less digits than its factorization.

49151380890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139766.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 49151380890 in words is "forty-nine billion, one hundred fifty-one million, three hundred eighty thousand, eight hundred ninety".