40191151401 has 16 divisors (see below), whose sum is σ = 59671624320. Its totient is φ = 26735970960.

The previous prime is 40191151397. The next prime is 40191151411. The reversal of 40191151401 is 10415119104.

40191151401 is a `hidden beast` number, since 401 + 9 + 115 + 140 + 1 = 666.

It is not a de Polignac number, because 40191151401 - 2² = 40191151397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40191151411) 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 in 15 ways as a sum of consecutive naturals, for example, 1602045 + ... + 1626938.

It is an arithmetic number, because the mean of its divisors is an integer number (3729476520).

Almost surely, 2^40191151401 is an apocalyptic number.

It is an amenable number.

40191151401 is a deficient number, since it is larger than the sum of its proper divisors (19480472919).

40191151401 is a wasteful number, since it uses less digits than its factorization.

40191151401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229453 (or 3229447 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 40191151401 in words is "forty billion, one hundred ninety-one million, one hundred fifty-one thousand, four hundred one".