49390332157 has 4 divisors (see below), whose sum is σ = 50441190336. Its totient is φ = 48339473980.

The previous prime is 49390332139. The next prime is 49390332221. The reversal of 49390332157 is 75123309394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49390332157 - 2⁷ = 49390332029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49390332137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525429019 + ... + 525429112.

It is an arithmetic number, because the mean of its divisors is an integer number (12610297584).

Almost surely, 2^49390332157 is an apocalyptic number.

49390332157 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49390332157 is a deficient number, since it is larger than the sum of its proper divisors (1050858179).

49390332157 is a wasteful number, since it uses less digits than its factorization.

49390332157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050858178.

The product of its (nonzero) digits is 612360, while the sum is 46.

The spelling of 49390332157 in words is "forty-nine billion, three hundred ninety million, three hundred thirty-two thousand, one hundred fifty-seven".