1901247712536 has 32 divisors (see below), whose sum is σ = 4770658483200. Its totient is φ = 631410677280.

The previous prime is 1901247712531. The next prime is 1901247712541. The reversal of 1901247712536 is 6352177421091.

It is an interprime number because it is at equal distance from previous prime (1901247712531) and next prime (1901247712541).

It is a super-2 number, since 2×1901247712536² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901247712531) 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, 146153376 + ... + 146166383.

It is an arithmetic number, because the mean of its divisors is an integer number (149083077600).

Almost surely, 2^{1901247712536} is an apocalyptic number.

It is an amenable number.

1901247712536 is an abundant number, since it is smaller than the sum of its proper divisors (2869410770664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1901247712536 is a wasteful number, since it uses less digits than its factorization.

1901247712536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292320039 (or 292320035 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 1901247712536 in words is "one trillion, nine hundred one billion, two hundred forty-seven million, seven hundred twelve thousand, five hundred thirty-six".