40782952491 has 4 divisors (see below), whose sum is σ = 54377269992. Its totient is φ = 27188634992.

The previous prime is 40782952489. The next prime is 40782952493. The reversal of 40782952491 is 19425928704.

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

It is an interprime number because it is at equal distance from previous prime (40782952489) and next prime (40782952493).

It is a cyclic number.

It is not a de Polignac number, because 40782952491 - 2¹ = 40782952489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40782952493) 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, 6797158746 + ... + 6797158751.

It is an arithmetic number, because the mean of its divisors is an integer number (13594317498).

Almost surely, 2^40782952491 is an apocalyptic number.

40782952491 is a deficient number, since it is larger than the sum of its proper divisors (13594317501).

40782952491 is a wasteful number, since it uses less digits than its factorization.

40782952491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13594317500.

The product of its (nonzero) digits is 1451520, while the sum is 51.

It can be divided in two parts, 407829 and 52491, that added together give a triangular number (460320 = T₉₅₉).

The spelling of 40782952491 in words is "forty billion, seven hundred eighty-two million, nine hundred fifty-two thousand, four hundred ninety-one".