49128206940 has 96 divisors (see below), whose sum is σ = 155124668160. Its totient is φ = 12905310528.

The previous prime is 49128206903. The next prime is 49128206971. The reversal of 49128206940 is 4960282194.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642762 + ... + 715121.

It is an arithmetic number, because the mean of its divisors is an integer number (1615881960).

Almost surely, 2^49128206940 is an apocalyptic number.

It is an amenable number.

49128206940 is an abundant number, since it is smaller than the sum of its proper divisors (105996461220).

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

49128206940 is a wasteful number, since it uses less digits than its factorization.

49128206940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357968 (or 1357960 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 49128206940 in words is "forty-nine billion, one hundred twenty-eight million, two hundred six thousand, nine hundred forty".