49059155920 has 40 divisors (see below), whose sum is σ = 114828085800. Its totient is φ = 19491955200.

The previous prime is 49059155911. The next prime is 49059155947. The reversal of 49059155920 is 2955195094.

It can be written as a sum of positive squares in 4 ways, for example, as 9076753984 + 39982401936 = 95272^2 + 199956^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2045931 + ... + 2069770.

It is an arithmetic number, because the mean of its divisors is an integer number (2870702145).

Almost surely, 2^49059155920 is an apocalyptic number.

49059155920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49059155920 is an abundant number, since it is smaller than the sum of its proper divisors (65768929880).

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

49059155920 is a wasteful number, since it uses less digits than its factorization.

49059155920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115863 (or 4115857 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 49.

The spelling of 49059155920 in words is "forty-nine billion, fifty-nine million, one hundred fifty-five thousand, nine hundred twenty".