40345587098 has 4 divisors (see below), whose sum is σ = 60518380650. Its totient is φ = 20172793548.

The previous prime is 40345587097. The next prime is 40345587131. The reversal of 40345587098 is 89078554304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36590716369 + 3754870729 = 191287^2 + 61277^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40345587097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10086396773 + ... + 10086396776.

Almost surely, 2^40345587098 is an apocalyptic number.

40345587098 is a deficient number, since it is larger than the sum of its proper divisors (20172793552).

40345587098 is a wasteful number, since it uses less digits than its factorization.

40345587098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20172793551.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 40345587098 in words is "forty billion, three hundred forty-five million, five hundred eighty-seven thousand, ninety-eight".