49202421786 has 320 divisors, whose sum is σ = 134686126080. Its totient is φ = 13182886080.

The previous prime is 49202421703. The next prime is 49202421797. The reversal of 49202421786 is 68712420294.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 375590941 + ... + 375591071.

It is an arithmetic number, because the mean of its divisors is an integer number (420894144).

Almost surely, 2^49202421786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49202421786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67343063040).

49202421786 is an abundant number, since it is smaller than the sum of its proper divisors (85483704294).

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

49202421786 is an equidigital number, since it uses as much as digits as its factorization.

49202421786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 49202421786 in words is "forty-nine billion, two hundred two million, four hundred twenty-one thousand, seven hundred eighty-six".