40571961501 has 8 divisors (see below), whose sum is σ = 54100404064. Its totient is φ = 27045746640.

The previous prime is 40571961433. The next prime is 40571961523. The reversal of 40571961501 is 10516917504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40571961501 - 2¹⁰ = 40571960477 is a prime.

It is a super-3 number, since 3×40571961501³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40571961501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40571961601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513955 + ... + 587616.

It is an arithmetic number, because the mean of its divisors is an integer number (6762550508).

Almost surely, 2^40571961501 is an apocalyptic number.

It is an amenable number.

40571961501 is a deficient number, since it is larger than the sum of its proper divisors (13528442563).

40571961501 is a wasteful number, since it uses less digits than its factorization.

40571961501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113851.

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 40571961501 in words is "forty billion, five hundred seventy-one million, nine hundred sixty-one thousand, five hundred one".