61370240490 has 192 divisors, whose sum is σ = 179283476736. Its totient is φ = 15014771712.

The previous prime is 61370240467. The next prime is 61370240497. The reversal of 61370240490 is 9404207316.

61370240490 is a `hidden beast` number, since 6 + 1 + 370 + 240 + 49 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (61370240497) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5269714 + ... + 5281346.

It is an arithmetic number, because the mean of its divisors is an integer number (933768108).

Almost surely, 2^61370240490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61370240490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89641738368).

61370240490 is an abundant number, since it is smaller than the sum of its proper divisors (117913236246).

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

61370240490 is a wasteful number, since it uses less digits than its factorization.

61370240490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11835 (or 11823 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 61370240490 in words is "sixty-one billion, three hundred seventy million, two hundred forty thousand, four hundred ninety".