7745432137 has 32 divisors (see below), whose sum is σ = 8734936320. Its totient is φ = 6833249280.

The previous prime is 7745432113. The next prime is 7745432153. The reversal of 7745432137 is 7312345477.

It is a cyclic number.

It is not a de Polignac number, because 7745432137 - 2¹⁵ = 7745399369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7745432093 and 7745432102.

It is not an unprimeable number, because it can be changed into a prime (7745430137) 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, 3171837 + ... + 3174277.

It is an arithmetic number, because the mean of its divisors is an integer number (272966760).

Almost surely, 2^7745432137 is an apocalyptic number.

It is an amenable number.

7745432137 is a deficient number, since it is larger than the sum of its proper divisors (989504183).

7745432137 is a wasteful number, since it uses less digits than its factorization.

7745432137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673.

The product of its digits is 493920, while the sum is 43.

The square root of 7745432137 is about 88008.1367658696. The cubic root of 7745432137 is about 1978.5569304368.

The spelling of 7745432137 in words is "seven billion, seven hundred forty-five million, four hundred thirty-two thousand, one hundred thirty-seven".