248790542949 has 24 divisors (see below), whose sum is σ = 387702419832. Its totient is φ = 152826963840.

The previous prime is 248790542893. The next prime is 248790542981. The reversal of 248790542949 is 949245097842.

248790542949 is a `hidden beast` number, since 2 + 4 + 87 + 9 + 0 + 542 + 9 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15518930625 + 233271612324 = 124575^2 + 482982^2 .

It is not a de Polignac number, because 248790542949 - 2¹⁶ = 248790477413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248790542999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1843642 + ... + 1973979.

It is an arithmetic number, because the mean of its divisors is an integer number (16154267493).

Almost surely, 2^248790542949 is an apocalyptic number.

It is an amenable number.

248790542949 is a deficient number, since it is larger than the sum of its proper divisors (138911876883).

248790542949 is a wasteful number, since it uses less digits than its factorization.

248790542949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818197 (or 3818194 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 248790542949 in words is "two hundred forty-eight billion, seven hundred ninety million, five hundred forty-two thousand, nine hundred forty-nine".