49215249442 has 24 divisors (see below), whose sum is σ = 77206807440. Its totient is φ = 23527148040.

The previous prime is 49215249431. The next prime is 49215249487. The reversal of 49215249442 is 24494251294.

49215249442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49215249442² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 49215249392 and 49215249401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2668609 + ... + 2686987.

It is an arithmetic number, because the mean of its divisors is an integer number (3216950310).

Almost surely, 2^49215249442 is an apocalyptic number.

49215249442 is a deficient number, since it is larger than the sum of its proper divisors (27991557998).

49215249442 is a wasteful number, since it uses less digits than its factorization.

49215249442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20958 (or 20935 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 49215249442 in words is "forty-nine billion, two hundred fifteen million, two hundred forty-nine thousand, four hundred forty-two".