40357957628765 has 32 divisors (see below), whose sum is σ = 55375809511680. Its totient is φ = 27660154752000.

The previous prime is 40357957628761. The next prime is 40357957628819. The reversal of 40357957628765 is 56782675975304.

It is not a de Polignac number, because 40357957628765 - 2² = 40357957628761 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40357957628692 and 40357957628701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40357957628761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 671472215 + ... + 671532315.

It is an arithmetic number, because the mean of its divisors is an integer number (1730494047240).

Almost surely, 2^{40357957628765} is an apocalyptic number.

It is an amenable number.

40357957628765 is a deficient number, since it is larger than the sum of its proper divisors (15017851882915).

40357957628765 is a wasteful number, since it uses less digits than its factorization.

40357957628765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69413.

The product of its (nonzero) digits is 2667168000, while the sum is 74.

The spelling of 40357957628765 in words is "forty trillion, three hundred fifty-seven billion, nine hundred fifty-seven million, six hundred twenty-eight thousand, seven hundred sixty-five".