49128047902 has 8 divisors (see below), whose sum is σ = 74941090200. Its totient is φ = 24147684504.

The previous prime is 49128047887. The next prime is 49128047981. The reversal of 49128047902 is 20974082194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×49128047902² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208169577 + ... + 208169812.

It is an arithmetic number, because the mean of its divisors is an integer number (9367636275).

Almost surely, 2^49128047902 is an apocalyptic number.

49128047902 is a deficient number, since it is larger than the sum of its proper divisors (25813042298).

49128047902 is a wasteful number, since it uses less digits than its factorization.

49128047902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416339450.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 49128047902 in words is "forty-nine billion, one hundred twenty-eight million, forty-seven thousand, nine hundred two".