49309634646440 has 128 divisors (see below), whose sum is σ = 133474482374400. Its totient is φ = 16015787182080.

The previous prime is 49309634646427. The next prime is 49309634646469. The reversal of 49309634646440 is 4464643690394.

It is a happy 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, 162965372 + ... + 163267668.

It is an arithmetic number, because the mean of its divisors is an integer number (1042769393550).

Almost surely, 2^{49309634646440} is an apocalyptic number.

49309634646440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49309634646440 is an abundant number, since it is smaller than the sum of its proper divisors (84164847727960).

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

49309634646440 is a wasteful number, since it uses less digits than its factorization.

49309634646440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332995 (or 332991 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 62.

The spelling of 49309634646440 in words is "forty-nine trillion, three hundred nine billion, six hundred thirty-four million, six hundred forty-six thousand, four hundred forty".